1r3bnr/2k1p3/2p2p1p/ppP3p1/2pPP1b1/P1N2NPP/1BP2P2/R3K2R w Q - 0 21
FEN state: 1r3bnr/2k1p3/2p2p1p/ppP3p1/2pPP1b1/P1N2NPP/1BP2P2/R3K2R w Q - 0 21 ; Best move: h3g4
The current state of the chess board is: Black rook at b8, black bishop at f8, black knight at g8 and black rook at h8. Black king at c7 and black pawn at e7. Black pawn at c6, black pawn at f6 and black pawn at h6. Black pawn at a5, black pawn at b5, white pawn at c5 and black pawn at g5. Black pawn at c4, white pawn at d4, white pawn at e4 and black bishop at g4. White pawn at a3, white knight at c3, white knight at f3, white pawn at g3 and white pawn at h3. White bishop at b2, white pawn at c2 and white pawn at f2. White rook at a1, white king at e1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 21. White to move.