r1bq2n1/2pk1r2/n2p4/p2P1pp1/R2QpP1p/6PN/1PP1PK1P/2BN1B1R b - - 0 18
FEN state: r1bq2n1/2pk1r2/n2p4/p2P1pp1/R2QpP1p/6PN/1PP1PK1P/2BN1B1R b - - 0 18 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black knight at g8. Black pawn at c7, black king at d7 and black rook at f7. Black knight at a6 and black pawn at d6. Black pawn at a5, white pawn at d5, black pawn at f5 and black pawn at g5. White rook at a4, white queen at d4, black pawn at e4, white pawn at f4 and black pawn at h4. White pawn at g3 and white knight at h3. White pawn at b2, white pawn at c2, white pawn at e2, white king at f2 and white pawn at h2. White bishop at c1, white knight at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.