rn1q1kn1/pbp5/3pQ3/PB1Ppp2/1P2P1p1/1RP1P1PN/7P/1N2K2R b K - 0 20
FEN state: rn1q1kn1/pbp5/3pQ3/PB1Ppp2/1P2P1p1/1RP1P1PN/7P/1N2K2R b K - 0 20 ; Best move: g4h3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8 and black knight at g8. Black pawn at a7, black bishop at b7 and black pawn at c7. Black pawn at d6 and white queen at e6. White pawn at a5, white bishop at b5, white pawn at d5, black pawn at e5 and black pawn at f5. White pawn at b4, white pawn at e4 and black pawn at g4. White rook at b3, white pawn at c3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at h2. White knight at b1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.