Ponderchess / Special moves
Know when a trapped king means a draw, not a win.
Look at the side whose turn it is.
Check whether any of its pieces has a legal move.
No legal move and no check means stalemate.
Play the guided film, or select a scene to pause and study its position.
Rule
Stalemate in 3D
White has king and queen against a lone king. It is White to move, and the win is one move away.
Rebuild the sequence yourself. The board responds to each move, and hints are available.
Click or drag to move · Arrow keys + Enter to play
Your turn · white to play
Select a piece, then its destination. Switch to 2D for a clear overhead view or rotate the 3D board to explore the position.
Two queen moves that look almost the same: one wins, one throws the win away.
Idea 01
Idea 02
Idea 03
Two queen moves that look almost the same: one wins, one throws the win away.
Keyboard: Space pauses, the arrow keys step. Gold arrows are White's moves, violet are Black's, red rays are threats, green shows support, blue shows plans.
Make the idea yours
No timer. No score. Just a moment to check your understanding.
