TACTICAL PRACTICE
Tactics practice 10 exercises in attack and defense · 15 × 15 8 freestyle exercises have no forbidden moves and five or more wins; 2 Renju exercises bind Black to the double-three, double-four and overline rules
04 Intermediate · Broken four · Freestyle The power of one gap Connect the scattered stones in one move to win.
Preparing the board
Last move: M3. Black to move · Find a move that meets the goal Tactical explanation Review the key idea and threats
AI COACH Key idea The power of one gap Four stones do not have to be consecutive to pose a threat. Check whether filling a gap would make five in a row.
Show hint 1No hints: ★★★ · Hint 1: ★★ · More help: ★
10 tactics 0 / 10 complete Without help: 0 solvedSuggested review 01 Win now 2 min · Basics 02 Defend the one key point 2 min · Basics 03 Threaten two points at once 3 min · Intermediate 04 The power of one gap 3 min · Intermediate 05 Two directions, one intersection 4 min · Applied tactics 06 Defend one move earlier 4 min · Applied tactics 07 What matters more than a clever attack 3 min · Applied tactics 08 Open ends create opportunities 4 min · Applied tactics 09 Five instead of a forbidden move 3 min · Renju 10 A four that cannot be blocked 4 min · Renju Practice progress is saved in this browser and kept when you return to your AI game.