4kbnr/2pq2p1/b1np1p1p/1p1PpPB1/1PB1P3/r1P2NP1/P6P/RNK3R1 w - - 1 21
FEN state: 4kbnr/2pq2p1/b1np1p1p/1p1PpPB1/1PB1P3/r1P2NP1/P6P/RNK3R1 w - - 1 21 ; Best move: d5c6
The current state of the chess board is: Black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black queen at d7 and black pawn at g7. Black bishop at a6, black knight at c6, black pawn at d6, black pawn at f6 and black pawn at h6. Black pawn at b5, white pawn at d5, black pawn at e5, white pawn at f5 and white bishop at g5. White pawn at b4, white bishop at c4 and white pawn at e4. Black rook at a3, white pawn at c3, white knight at f3 and white pawn at g3. White pawn at a2 and white pawn at h2. White rook at a1, white knight at b1, white king at c1 and white rook at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.