# PracticalEndgameTest6/Solution

White to play and win

and are miai, but White chooses to get the reverse sente at . Then Black takes his sente with - .

Stout resistance

Next, - force White to keep pace with - . Otherwise Black can make jigo. But gets tedomari to win by one point.

Final miai

Finally, the last four plays are all miai. The order of plays does not matter. White wins by 1.

WillerZ found the solution.

I concocted this for Dave, who wondered about "assessing reverse sente dynamically". I also wanted to show the difference between the initial miai, which made no difference in the previous problem.

Wrong miai

If takes the wrong miai, Black takes his sente with - and then takes the other miai with . After the remaining four plays are miai. As with the Final miai diagram, the exact order of play does not matter. The result is jigo.

Wrong reverse sente

At first it appears that White can play the reverse sente at instead of , but is a mistake.

Wrong reverse sente (ii)

After we have not reached a miai. Black continues with . Now - is sente because of and . After the last two plays are miai. The result is jigo.

is worth 1.5 points, not 1, so is sente. But after White replies at , is tedomari, and Black gets jigo.

Premature reverse sente

If White starts with the reverse sente at , Black takes the right miai (for him) with . After the position has transposed to the Wrong reverse sente diagram.

Note that each player prefers a different play in the initial miai.

PracticalEndgameTest6/Solution last edited by 68.126.80.198 on August 4, 2004 - 20:19
Partner sites: