Cross-cut after tower peep

Keywords: Tesuji

This material is related to the double crosscut to connect page and deals with the same crosscut tesuji - it should perhaps be organized differently

Black has just capped white's two space extension with . It is now tempting for White to play the tower peep at a.

There is only sense in the tower peep if followed through with a cut. is the severest of the two cuts.

Now Black has a tesuji up his sleeve. First he exchanges - (if unanswered, ladders or nets become possible). Next comes the keima attachment of which White naturally answers with the outside hane.

The cross-cut of captures the marked cutting stones. There is nothing White can do about it. The atari of a, c will be answered with b, d respectively.