rn1k2n1/pP1pq1p1/1p1Nr3/2p1pP1p/1P5P/B5bR/2PP1PP1/1R1QKB2 w - - 0 18
FEN state: rn1k2n1/pP1pq1p1/1p1Nr3/2p1pP1p/1P5P/B5bR/2PP1PP1/1R1QKB2 w - - 0 18 ; Best move: b4c5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8 and black knight at g8. Black pawn at a7, white pawn at b7, black pawn at d7, black queen at e7 and black pawn at g7. Black pawn at b6, white knight at d6 and black rook at e6. Black pawn at c5, black pawn at e5, white pawn at f5 and black pawn at h5. White pawn at b4 and white pawn at h4. White bishop at a3, black bishop at g3 and white rook at h3. White pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White rook at b1, white queen at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.