French Defense Advance Variation Fork Puzzle: White to Move

♟ Puzzle Objective

White to move. This intermediate Fork challenge comes from a French Defense Advance Variation position. Find the forcing continuation before viewing the hint or solution, then replay the line until the tactical clue becomes easy to recognise.

Puzzle at a Glance

Main ThemeFork

To MoveWhite

Rating1114

Times Played714

Tactical Themes in This Position

Fork Mate Mate In 2 Middlegame Short

Recognising fork is only step one. The useful training question is why it works in this exact position and how the French Defense Advance Variation structure allowed it.

How to Solve It

Check the king, hanging pieces and immediate threats.
List forcing candidates: checks, captures, then direct threats.
Calculate the opponent’s strongest reply before moving.
Play the sequence and review any missed defence.

Calculation Checklist

Checks?Captures?Threats?King escape?Defender removed?Final gain?

Position Analysis

White to move. This Fork puzzle comes from a French Defense Advance Variation position. With a training rating of 1114, it is classed here as Intermediate. The solution contains 3 forcing moves after the setup position.

A fork works only when both threats are real and the attacking piece cannot simply be taken. In this position, look for a forcing entry square where White can attack two valuable targets at once. Supporting motifs tagged in the source data include Mate, Mate In 2, Middlegame.

Training focus: Solve the line before using the reveal button. Then reset the board and explain why the first move works; recognising the motif in a real game matters more than remembering puzzle ID 01LO7.

Position Details & Source

Puzzle Position FEN

r3rbk1/1pqb1p1p/4p1nQ/p2p3N/3p4/P2B1P2/1PP2P1P/R3R1K1 w - - 1 18

Copy this FEN into an analysis board to revisit the exact position shown above. Opening tag: French Defense Advance Variation. Primary tactical theme: Fork.

View source game on Lichess ↗

Continue Training on ChessAlgo

Chess Tactics GuideLearn forks, pins, skewers and major tactical patterns. Chess Move CalculatorAnalyze positions and compare candidate moves. Chess OpeningsBuild the positions where tactics appear. FEN GuideSave and study exact puzzle positions.

Reviewed for practical training by

Alex Torres

FIDE-Rated Chess Analyst · Engine Specialist · Founder, ChessAlgo.com

Alex Torres is a FIDE-rated chess player and Stockfish analysis specialist with 15+ years of competitive play and 8 years of private coaching experience. ChessAlgo puzzle pages are designed for practical calculation training and post-game improvement.

Full Bio Open Calculator FEN Guide

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Frequently Asked Questions

What should I notice first in this Fork puzzle? ▾

Begin by looking for the clue behind the fork theme, then compare checks, captures and direct threats. Do not move until you have calculated the opponent’s strongest reply.

How difficult is this tactic? ▾

This puzzle is marked intermediate with a puzzle rating of 1114. Try to solve it without a hint first, then review the full line.

How should I review this position after revealing the line? ▾

Reveal the solution, identify why the fork works in this position, reset the board and solve it again from memory. That second attempt is where pattern recognition is built.