rqn1kb1r/pp4pp/2p5/5p2/P1P1pBP1/Rn1P3P/4PPR1/3QKBN1 w - - 6 22
FEN state: rqn1kb1r/pp4pp/2p5/5p2/P1P1pBP1/Rn1P3P/4PPR1/3QKBN1 w - - 6 22 ; Best move: a3b3
The current state of the chess board is: Black rook at a8, black queen at b8, black knight at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at g7 and black pawn at h7. Black pawn at c6. Black pawn at f5. White pawn at a4, white pawn at c4, black pawn at e4, white bishop at f4 and white pawn at g4. White rook at a3, black knight at b3, white pawn at d3 and white pawn at h3. White pawn at e2, white pawn at f2 and white rook at g2. White queen at d1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 6. Full move number is 22. White to move.