Chess Position
Position: What should White play?
Ng5
r1b1k1r1/ppqpnpbN/2n1p1p1/2p5/2B1P3/3P4/PPPB1PPP/RN1Q1RK1 w q -
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
+0.54 d20
Ng5played by
👤
Humans
0%
🧠
Maia AI
0%
♟
Stockfish
#1
FEN
r1b1k1r1/ppqpnpbN/2n1p1p1/2p5/2B1P3/3P4/PPPB1PPP/RN1Q1RK1 w q - 0 1💡
Why 
h3 ?⚠️ h3? — mistake
EVAL:
[███░░░░░░░]-0.99+0.61 → -0.99 (Loss: -1.60)
💡 Problem with h3:
This is a slow, passive move that fails to address the vulnerability of the h7. By pushing the pawn to h3, White creates a hook for Black to exploit and ignores the immediate tactical pressure on the kingside.
⚖️ Comparison
| Coup | Eval | Rule | Verdict |
|---|---|---|---|
| ✅ g5! | +0.61 | ✓ Improve Piece Activity | Repositions the trapped knight to attack e6 and f7. |
| ❌ h3? | -0.99 | ✗ Prophylaxis Failure | Wastes a tempo and allows Black to seize the initiative. |
⚡ Opponent's Punishment
After h3:
- → f6 traps the h7 and prepares to dismantle White's center.
- → White loses: Control over the dark squares and the safety of the kingside.
📚 Lesson: When a piece is misplaced on the rim, prioritize its repositioning over minor pawn moves.
Analyze this position interactively
Get personalized explanations, practice variations, and improve your chess understanding with our AI coach.
Open in WhyThisMove App