rn3b1r/pbk4p/1pp3pn/2Nqpp2/PP1P1P2/1Q4PN/4P2P/R1B1KB1R w KQ - 4 18
FEN state: rn3b1r/pbk4p/1pp3pn/2Nqpp2/PP1P1P2/1Q4PN/4P2P/R1B1KB1R w KQ - 4 18 ; Best move: b3d5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black king at c7 and black pawn at h7. Black pawn at b6, black pawn at c6, black pawn at g6 and black knight at h6. White knight at c5, black queen at d5, black pawn at e5 and black pawn at f5. White pawn at a4, white pawn at b4, white pawn at d4 and white pawn at f4. White queen at b3, white pawn at g3 and white knight at h3. White pawn at e2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 18. White to move.