r4b1r/q2bn3/p6p/1pppk3/8/P1N1P2P/RP1P1PP1/2BK1BR1 w - - 2 22
FEN state: r4b1r/q2bn3/p6p/1pppk3/8/P1N1P2P/RP1P1PP1/2BK1BR1 w - - 2 22 ; Best move: b2b4
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black queen at a7, black bishop at d7 and black knight at e7. Black pawn at a6 and black pawn at h6. Black pawn at b5, black pawn at c5, black pawn at d5 and black king at e5. White pawn at a3, white knight at c3, white pawn at e3 and white pawn at h3. White rook at a2, white pawn at b2, white pawn at d2, white pawn at f2 and white pawn at g2. White bishop at c1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 22. White to move.