okkaystudio
Reversi lessons · Advanced · Step 8
Forcing a Pass
If your opponent has no legal moves, they pass and you get to play again. Forcing a pass late in the game is like getting free moves, so the disc difference grows a lot. Find the move that takes away your opponent's moves, and keep going to the end.
Puzzle 1
Start with a move that forces White to pass, then play to the end. (Black to move)
Show answer and explanation
The yellow circle marks the answer. After the answer, White has no moves and passes. Black plays several moves in a row and wins by 60. Starting with the biggest-flipping move wins by 36.
Puzzle 2
One more time? Leave White with no way out. (Black to move)
Show answer and explanation
The yellow circle marks the answer. After the answer, White passes. Play your best to the end and Black wins by 48. Starting with the biggest-flipping move wins by only 30.