2bqk2r/r1pp2pp/1p3p2/p1b1n2n/B2NPN1P/1P3Q2/PBPP2P1/R3KR2 w k - 5 21
FEN state: 2bqk2r/r1pp2pp/1p3p2/p1b1n2n/B2NPN1P/1P3Q2/PBPP2P1/R3KR2 w k - 5 21 ; Best move: f3h5
The current state of the chess board is: Black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black rook at a7, black pawn at c7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at b6 and black pawn at f6. Black pawn at a5, black bishop at c5, black knight at e5 and black knight at h5. White bishop at a4, white knight at d4, white pawn at e4, white knight at f4 and white pawn at h4. White pawn at b3 and white queen at f3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2 and white pawn at g2. White rook at a1, white king at e1 and white rook at f1. Black kingside is the only castle move available. Half move number is 5. Full move number is 21. White to move.