Master Blokus: Complete Strategy Guide & Tips

If Tetris and Risk had a baby, then sent it to military strategy school, you'd get Blokus. This abstract board game strips territorial conquest down to pure geometric warfare. Four players, 21 pieces each, one rule: your pieces must touch corners, never edges. Sounds simple until you're three moves in and realize you've boxed yourself into a 3x3 prison while your opponent snakes across half the board.

I've spent probably 40+ hours with Blokus at this point, and it still surprises me. The digital version captures everything that makes the physical game brilliant while fixing the main problem—finding three other people who want to play abstract strategy games on a Tuesday night.

What Makes This Game Tick

Picture this: You're blue, starting from the bottom-left corner. Your first piece must cover that corner square. You drop your biggest piece—the 5-square straight line—diagonally across the board. Smart move. Maximum territory, maximum options.

Red goes next, mirrors your play from top-right. Yellow and green follow suit. Second round starts, and here's where it gets interesting. You need to place a piece that touches your first piece's corner—any corner—but can't share an edge. This single rule creates the entire strategic depth.

You drop an L-shaped piece, branching toward the center. Red blocks your path with a T-piece. You counter with a zigzag that snakes around their blockade. By move five, the board looks like a stained glass window designed by a mathematician having a fever dream.

The goal? Place all 21 pieces before anyone else. Failing that, place more squares than your opponents. Each piece ranges from a single square (your emergency escape hatch) to the mighty pentominoes—five squares in various configurations. The player who dumps the most plastic on the board wins.

Games typically run 15-25 minutes. The first ten moves feel exploratory, like you're all politely claiming territory. Moves 11-18 turn into trench warfare. The final three moves are desperate Tetris as you try to squeeze your remaining pieces into gaps that definitely weren't designed for them.

Controls & Feel

Desktop play is smooth. Click a piece from your tray, rotate with R or right-click, flip with F. The board highlights valid placement spots in real-time—green for legal, red for illegal. Drag and drop works, but I prefer click-to-select, click-to-place. Faster once you internalize it.

The rotation system took me about five games to master. Pieces have up to eight orientations (four rotations, two flips). The game cycles through them logically, but you'll occasionally rotate past your target and need to loop around. Minor annoyance.

Mobile is where things get tricky. The board shrinks to phone-screen size, and those pentominoes suddenly look identical. I've placed the wrong piece at least a dozen times because I grabbed the W-pentomino instead of the N-pentomino. The interface adds a confirmation button to prevent misclicks, which helps but slows gameplay.

Touch controls work better than expected. Tap to select, tap to rotate, tap to place. Pinch-to-zoom helps identify pieces, though zooming mid-game breaks your flow. The AI doesn't wait for you to finish zooming, which feels fair but brutal.

One quality-of-life feature I appreciate: the game shows piece shadows before placement. You can preview exactly where your piece lands, including which corners will be available for future moves. This seems minor until you're calculating three-move sequences and need to verify corner access.

The undo button exists but only works before you confirm placement. Once you commit, that piece stays. Good design choice—prevents analysis paralysis and keeps games moving.

Strategy That Actually Works

Most strategy games reward aggression or defense. Blokus rewards efficiency. Here's what I've learned through repeated defeats:

Start Big, End Small

Your first three moves should use your largest pieces—the pentominoes. You have 12 of them, and they're your territorial foundation. I prioritize the straight-five, the plus-sign, and the L-pentomino. These pieces maximize board coverage while creating multiple corner access points.

Save your single square and two-square pieces for endgame. They're gap-fillers, not empire-builders. Playing them early wastes precious board space and limits your expansion options.

Corner Access Is Currency

Every piece you place should create at least two new corner access points. Three is better. Four is ideal. The plus-sign pentomino creates four corners—it's geometrically perfect for mid-game expansion.

I track available corners obsessively. Drop below three accessible corners, and you're probably losing. Your pieces need multiple placement options, or opponents will block your only path and strangle your position.

Control the Center, Ignore the Edges

The board's center offers maximum expansion in all directions. Edge positions look safe but trap you. I aim to place my third or fourth piece touching the center 4x4 square. This position lets me branch toward any opponent while maintaining defensive flexibility.

Opponents who hug their starting corners run out of space by move 12. They'll have eight pieces left and nowhere to put them. You'll have five pieces left and three viable placement zones.

Block Aggressively, Expand Conservatively

If you can block an opponent's expansion with your natural move, do it. Don't sacrifice your position to grief someone, but opportunistic blocking wins games. The T-tetromino and Z-tetromino excel at creating barriers while maintaining your corner access.

I specifically target whoever's ahead on piece count. If red has placed 15 pieces and you've placed 13, red is your problem. Block their corners, force them into awkward placements, make them waste their small pieces early.

The Diagonal Principle

Pieces placed diagonally cover more territory than pieces placed orthogonally. The straight-five pentomino placed diagonally reaches from corner to corner of a 5x5 area. Placed horizontally, it's just a line.

This matters because Blokus rewards territorial control. Diagonal placements create natural barriers against opponents while maximizing your expansion potential. I place 60-70% of my pieces on diagonal angles.

Piece Sequencing Matters

The order you play pieces determines your endgame options. I follow this rough sequence: pentominoes (moves 1-8), tetrominoes (moves 9-14), triominoes (moves 15-18), then whatever fits (moves 19-21).

Breaking this sequence usually means you're responding to opponent pressure, which is fine. But if you're playing your two-square pieces on move 6, something went wrong.

The One-Square Gambit

Your single-square piece is simultaneously useless and invaluable. It fits anywhere, which makes it your emergency escape when you're boxed in. But playing it means you've given up 4-5 squares of potential territory.

I save it until move 20 or later. If I play it earlier, I'm probably losing. The exception: using it to block an opponent's last placement spot while securing your own. That's worth the territorial sacrifice.

Mistakes That Kill Your Run

Playing Reactively Instead of Proactively

New players spend too much energy blocking opponents and not enough building their own position. You'll see someone waste their L-pentomino to block an opponent's corner, creating zero new corners for themselves. That's a losing move.

Block when it's free—when your natural expansion happens to obstruct an opponent. Don't contort your strategy around denial. You can't block three opponents simultaneously, so focus on outpacing them instead.

Ignoring Piece Geometry

The W-pentomino and N-pentomino look similar but function differently. The W creates corners on opposite sides; the N creates corners on the same side. Mixing them up means placing a piece that doesn't enable your next move.

I've lost games because I grabbed the wrong piece and didn't realize until two moves later when I couldn't place my planned follow-up. The game won't let you undo, so you're stuck adapting to your mistake. Study your pieces before the match starts.

Overcommitting to One Direction

Expanding in a single direction feels efficient until an opponent blocks your path. Suddenly you've got 10 pieces left and one accessible corner. You're done.

Maintain expansion options in at least two directions, preferably three. This requires planning three moves ahead, which sounds exhausting but becomes automatic after a few games. Similar to how War Chess players learn to see multiple moves ahead, Blokus rewards spatial planning.

Saving Big Pieces for Later

Some players hoard their pentominoes, thinking they'll need them for a perfect endgame placement. This never works. By move 15, the board is too crowded for large pieces. You'll be forced to play them in suboptimal positions, wasting their territorial value.

Big pieces early, small pieces late. Always. The only exception is if you're deliberately sacrificing a game to learn a specific strategy, which is valid but won't win matches.

Difficulty Curve Analysis

The AI has three difficulty levels: Easy, Medium, Hard. Easy mode plays randomly—it'll place pieces in legal spots without strategy. You'll win by move 18 once you understand basic corner mechanics. Good for learning piece shapes and placement rules.

Medium AI actually thinks. It prioritizes center control, blocks obvious moves, and manages piece sequencing. Your first few Medium games will be humbling. The AI doesn't make emotional mistakes or get tilted. It calculates optimal placements faster than you can visualize them.

I won my first Medium game on attempt seven. The breakthrough came when I stopped trying to block the AI and focused on efficient expansion. The AI will outplay you tactically, so you need to outpace it strategically.

Hard mode is legitimately difficult. The AI plans 4-5 moves ahead and punishes every suboptimal placement. It'll sacrifice short-term territory to secure long-term corner access. It blocks your expansion while maintaining its own. I'm maybe 40% win rate against Hard after 30+ games.

The difficulty curve feels fair. Easy teaches mechanics, Medium teaches strategy, Hard teaches mastery. Unlike Azul where the AI can feel predictable, Blokus AI adapts to your playstyle. It identifies your patterns and exploits them.

Multiplayer against humans is a different beast entirely. People make emotional plays, revenge blocks, and chaotic decisions that no AI would attempt. This unpredictability makes human games more fun but less consistent. You'll win games you should lose and lose games you should win.

Common Questions

Can you play Blokus solo?

Yes, but it's not ideal. The game includes a solo puzzle mode where you try to place all 21 pieces on a restricted board. These puzzles are brain-teasers, not strategy exercises. They teach piece geometry but not competitive play.

Playing against AI counts as solo play and works better. You get real strategic practice without needing other humans. The AI provides consistent challenge and doesn't quit mid-game when they're losing.

What's the best starting piece?

The straight-five pentomino placed diagonally from your corner. This placement maximizes territorial reach while creating four accessible corners. Your second move should be another pentomino that branches perpendicular to your first piece.

Some players prefer the plus-sign pentomino as an opener. It creates four corners immediately but covers less territory. Both strategies work; I prefer the straight-five for its aggressive expansion.

How do you recover from a bad start?

You probably don't. Blokus punishes early mistakes harder than most strategy games. A bad first three moves means you're fighting for third place, not first.

That said, focus on maintaining corner access and blocking the leader. If you can't win, prevent someone else from winning. Force a low-scoring game where everyone places 14-16 pieces instead of 18-20. Chaos favors the underdog.

Is Blokus better than other abstract strategy games?

Depends what you value. Blokus plays faster than Chess, simpler than Go, more spatial than Checkers. The corner-touching rule creates unique strategic depth—you're simultaneously building and blocking, expanding and defending.

Compared to other digital board games, Blokus hits a sweet spot. Games are short enough for lunch breaks but deep enough for serious competition. The learning curve is steep but not vertical. You'll understand the rules in one game and spend the next 50 games mastering the implications.

The digital version specifically solves the physical game's biggest problem: setup and teardown time. Physical Blokus takes five minutes to set up and two minutes to put away. The digital version is instant. This convenience makes it actually playable on weeknight evenings instead of just weekend game sessions.

After 40+ hours, I'm still finding new strategies and piece combinations. The game has staying power. Whether it's better than other abstract games is subjective, but it's definitely worth your time if you enjoy spatial puzzles and territorial strategy.