Chess Position
Position: What should White play?
Bxc4
rn1qkb1r/pp2pppp/2p2n2/4N1B1/2pPb3/2N5/PP3PPP/R2QKB1R w KQkq -
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
0
games in database
52%
28%
20%
⚪ White
½ Draw
⚫ Black
♟
Engine Evaluation
+0.45 d20
Bxc4played by
👤
Humans
0%
🧠
Maia AI
0%
♟
Stockfish
#1
FEN
rn1qkb1r/pp2pppp/2p2n2/4N1B1/2pPb3/2N5/PP3PPP/R2QKB1R w KQkq - 0 1💡
Why 
xe4 ?⚠️ xe4? — mistake
EVAL:
[████░░░░░░]-0.55+0.52 → -0.55 (Loss: -1.07)
💡 Problem with xe4:
By trading the c3 for the e4, you remove the defender of the g5 square. This allows Black to simplify the position and eliminate your most active piece, the g5.
⚖️ Comparison
| Coup | Eval | Rule | Verdict |
|---|---|---|---|
| ✅ xc4! | +0.52 | ✓ Material Gain | Restores material balance and pressures f7. |
| ❌ xe4? | -0.55 | ✗ Poor Exchange | Trades a key defender and loses the initiative. |
⚡ Opponent's Punishment
After xe4:
- → xe4 centralizes the Black Knight and attacks the g5.
- → White loses: The bishop pair advantage and control over the center.
📚 Lesson: Do not trade your only defender of a key square unless you gain a concrete tactical advantage.
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