rn1k1bnr/p2b2p1/3N1p1p/Ppp5/2Np1pPP/BP1PP3/R1P1K3/3Q1B1R w - - 3 21
FEN state: rn1k1bnr/p2b2p1/3N1p1p/Ppp5/2Np1pPP/BP1PP3/R1P1K3/3Q1B1R w - - 3 21 ; Best move: e2e1
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at d7 and black pawn at g7. White knight at d6, black pawn at f6 and black pawn at h6. White pawn at a5, black pawn at b5 and black pawn at c5. White knight at c4, black pawn at d4, black pawn at f4, white pawn at g4 and white pawn at h4. White bishop at a3, white pawn at b3, white pawn at d3 and white pawn at e3. White rook at a2, white pawn at c2 and white king at e2. White queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. White to move.