1n1k1b1r/1p1b2p1/r2pp3/p1p2n1p/PQ1P1P1R/4P1NB/1PP1K3/RNB5 w - - 0 18
FEN state: 1n1k1b1r/1p1b2p1/r2pp3/p1p2n1p/PQ1P1P1R/4P1NB/1PP1K3/RNB5 w - - 0 18 ; Best move: b4b7
The current state of the chess board is: Black knight at b8, black king at d8, black bishop at f8 and black rook at h8. Black pawn at b7, black bishop at d7 and black pawn at g7. Black rook at a6, black pawn at d6 and black pawn at e6. Black pawn at a5, black pawn at c5, black knight at f5 and black pawn at h5. White pawn at a4, white queen at b4, white pawn at d4, white pawn at f4 and white rook at h4. White pawn at e3, white knight at g3 and white bishop at h3. White pawn at b2, white pawn at c2 and white king at e2. White rook at a1, white knight at b1 and white bishop at c1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.