r3kr2/p4p1p/5p1b/1p4P1/1PP1nq2/1PP1P1PN/4K2P/1R1Q1B1R b q - 0 18
FEN state: r3kr2/p4p1p/5p1b/1p4P1/1PP1nq2/1PP1P1PN/4K2P/1R1Q1B1R b q - 0 18 ; Best move: e4c3
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at f8. Black pawn at a7, black pawn at f7 and black pawn at h7. Black pawn at f6 and black bishop at h6. Black pawn at b5 and white pawn at g5. White pawn at b4, white pawn at c4, black knight at e4 and black queen at f4. White pawn at b3, white pawn at c3, white pawn at e3, white pawn at g3 and white knight at h3. White king at e2 and white pawn at h2. White rook at b1, white queen at d1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.