rnb1q1n1/1ppp4/4pk1r/p4ppp/2PbP2P/PPNP1PP1/R2BB2R/4QKN1 b - - 10 21
FEN state: rnb1q1n1/1ppp4/4pk1r/p4ppp/2PbP2P/PPNP1PP1/R2BB2R/4QKN1 b - - 10 21 ; Best move: g5h4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at e8 and black knight at g8. Black pawn at b7, black pawn at c7 and black pawn at d7. Black pawn at e6, black king at f6 and black rook at h6. Black pawn at a5, black pawn at f5, black pawn at g5 and black pawn at h5. White pawn at c4, black bishop at d4, white pawn at e4 and white pawn at h4. White pawn at a3, white pawn at b3, white knight at c3, white pawn at d3, white pawn at f3 and white pawn at g3. White rook at a2, white bishop at d2, white bishop at e2 and white rook at h2. White queen at e1, white king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 10. Full move number is 21. Black to move.