4k1nr/1rpqb1p1/2n1pp1p/p1p5/3PPPbP/1p4Q1/PB2B1P1/R3K2R w k - 6 21
FEN state: 4k1nr/1rpqb1p1/2n1pp1p/p1p5/3PPPbP/1p4Q1/PB2B1P1/R3K2R w k - 6 21 ; Best move: e2g4
The current state of the chess board is: Black king at e8, black knight at g8 and black rook at h8. Black rook at b7, black pawn at c7, black queen at d7, black bishop at e7 and black pawn at g7. Black knight at c6, black pawn at e6, black pawn at f6 and black pawn at h6. Black pawn at a5 and black pawn at c5. White pawn at d4, white pawn at e4, white pawn at f4, black bishop at g4 and white pawn at h4. Black pawn at b3 and white queen at g3. White pawn at a2, white bishop at b2, white bishop at e2 and white pawn at g2. White rook at a1, white king at e1 and white rook at h1. Black kingside is the only castle move available. Half move number is 6. Full move number is 21. White to move.