Stuck at Your Current Rating?
Signup for free to join thousands of players who improved their game with our personalized tips and analysis
penguingm1 vs lachesisq
win
Date: 2026-03-16 16:34:49 |
Game Link
Table of Contents
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
h
g
f
e
d
c
b
a
h
g
f
e
d
c
b
a
Game Navigator
Game Snapshot
Nimzo-Indian Defense: Classical Variation
Master Lens
Black (GM lachesisQ) defeated White in a Nimzo‑Indian Classical game by turning an early bishop‑pair advantage into active rook play on the seventh rank and a winning endgame, despite a decisive slip at move 43. The game illustrates how piece activity, open‑file rooks, and careful king coordination can convert a modest opening edge into a full win.
What The GM Did Well By Phase
Opening
Black exchanged the light‑squared bishop for White's knight on c3 with **13...Bxc3**, giving up a piece but keeping the bishop pair and opening the b‑file for the rook. This created an imbalance (the bishop pair) that favors Black in open positions. Then Black placed the rook on **15...Rb8**, immediately targeting the b‑file and preparing to lift the rook into White's camp, showing the principle of activating rooks early when the center is semi‑closed.
Middlegame
After White's rook entered the seventh rank with **21.Rd6**, Black responded with **21...Bc4** and later **30...Kf6**, keeping the king safe while the bishop eyed the weak d5 pawn. Black then used the rook on the a‑file, moving it to **35...Ra1+**, **36...Ra2+**, and finally **45...Ra2**, forcing White's king to wander and allowing the rook to dominate the seventh rank (a classic rook‑on‑seventh technique). This demonstrates how a well‑placed rook can restrict the opponent's king and create mating threats.
Endgame
In the final phase Black's bishop on d5 and rook on a2 coordinated to pressure White's pawn structure, but the critical error came with **43...Kd4**. By moving the king away from e5, Black abandoned the bishop that was defending the d5 square, allowing White to win material with **44.Rxd5+**. The lesson here is the principle of never abandoning the defender of a piece under attack: before moving a piece that protects another, always check that the protected piece will not become a free target. Keeping the king on **43...Kd6** would have maintained the bishop's defense and preserved the balance.
Game Themes
rook and bishop
fianchetto
rooks on seventh
castling
passed pawns
bishop pair