1rbqk1nr/pp1p1p1p/3b4/2p5/2PnppPP/P7/1P1PPK2/RNBQ1BNR w k - 1 10
FEN state: 1rbqk1nr/pp1p1p1p/3b4/2p5/2PnppPP/P7/1P1PPK2/RNBQ1BNR w k - 1 10 ; Best move: g4g5
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at f7 and black pawn at h7. Black bishop at d6. Black pawn at c5. White pawn at c4, black knight at d4, black pawn at e4, black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at a3. White pawn at b2, white pawn at d2, white pawn at e2 and white king at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 1. Full move number is 10. White to move.