1r3knr/1pp2p1p/p5pb/3pp1B1/1P1P2bN/PQ4q1/RP2PP1P/1N2KBR1 w - - 4 18
FEN state: 1r3knr/1pp2p1p/p5pb/3pp1B1/1P1P2bN/PQ4q1/RP2PP1P/1N2KBR1 w - - 4 18 ; Best move: g5h6
The current state of the chess board is: Black rook at b8, black king at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at g6 and black bishop at h6. Black pawn at d5, black pawn at e5 and white bishop at g5. White pawn at b4, white pawn at d4, black bishop at g4 and white knight at h4. White pawn at a3, white queen at b3 and black queen at g3. White rook at a2, white pawn at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White knight at b1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 18. White to move.