Clinic in 10-

10- (Khorkov - Jordan+Aunt Beast*, 2010-05-27) 1(11)1[2-4] 1(12@2)11 {Roman: You lose.} 2(13)12 {Josh: Not so fast....} 5(14)6 5(15)5[6] 7(16)7[8-9] 7(17)16[8] I



The position that results from move 15 is 4Q1+PP3, which is in P^-. On paper, at least, the position is complicated: 4Q1 = 6 1(7)2 1(8)1[2] is wild of length 11 with nim-values 0¹ and PP3 = {*0, {*3, {*2}}, {*1, {*2}}} is wild of length 4 with nim-values 3⁰. Obviously, this doesn't pose a problem for the Russian sprouts savant, but I'd still like to know just how he knew that their sum is a misere P-position.