4qbn1/r4kpr/npp1p2p/p2p4/1P1P2pP/N3Q1BR/P1P1PP2/1RK2BN1 w - - 0 22
FEN state: 4qbn1/r4kpr/npp1p2p/p2p4/1P1P2pP/N3Q1BR/P1P1PP2/1RK2BN1 w - - 0 22 ; Best move: b4b5
The current state of the chess board is: Black queen at e8, black bishop at f8 and black knight at g8. Black rook at a7, black king at f7, black pawn at g7 and black rook at h7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at e6 and black pawn at h6. Black pawn at a5 and black pawn at d5. White pawn at b4, white pawn at d4, black pawn at g4 and white pawn at h4. White knight at a3, white queen at e3, white bishop at g3 and white rook at h3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at f2. White rook at b1, white king at c1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 22. White to move.