From: Steve Evans NETSPACE NET AU> Date: 22 feb 1999 Subject: Re: Solution to D27 Colin Paul Adams wrote: > You would think that after D29 I would know better, but no - I'm going > to publish this solution on my own bat. (I'm sure Steve will put it > through the computer to check it, before sending it to George, but > I've double checked it myself, and I'm confident I got this right. > Great work!! I've checked your solution with the program and it's fine. For the sake of completeness I've added a couple of minor lines and comments (shown in brackets below). Some of these lines are included on the presumption (possibly erroneous) that White's Kylin can legally promote on it's first move. Steve > 1. +RC x 12k, Ln x 12k > 2. +B x 12k, K x 12k > 3. L - 12d+, SM x 12d > > or 3. ..., Ky - 12j=, 4. +R x 11k mate > or 3. ..., K - 11l, 4. +VM x 11k, Ky x 11k(=) 5. +B - 10k mate (or 5 > +R-10k mate) (or 3. ..., Ky-12j+ 4. +Lx12j, Kx12j 5. +Rx11k mate) (or 3. ..., Ky-12h= 4. +Rx11k mate) (or 3. ..., Ky-12h+ 4. +VMx12h, K-11l 5. +VMx11k mate) (or 3. ..., K-11l 4. +VMx11k, Kyx11k+ 5. +Rx11k, Kx11k 6. +VM-11i mate) > > 4. +B - 11j, K x 11j > > or 4. ..., K - 12l/11l, 5. +B x 11k, Ky x 11k(+/=) 6. +R x 11k mate > > 5. +VM x 11i, K - 10i > > or 5. ..., K - 12i 6. +VM - 11h, K - 12h 7. +VM - 10j, +SM x 10j > 8. +R - 12k mate (White can block for 1 move here with +SM-12j which > is followed by 9. +Rx12j mate) > or 6. ..., K - 12j 7. +R x 11k mate > or 5. K x 11i 6. +R x 11k > and we rejoin the main line > or 5. ..., K - 12k, 6. +R x 11k mate > > 6. +VM - 11j, K x 11j (or 6. ... , K-9j 7. +VM-9h, +SM-9i 8. +VM1ax9i mate) > > 7. +R x 11k, K - 10i > > or 7. ..., K - 12i 8. +R - 11h, K - 12j 9. +VM - 12l mate > 8. +R - 10j, K - 9h > 9. +R - 9i, K - 8g > 10. +R - 8h, K - 7f > 11. +R - 7g, K - 6e > 12. +R - 6f, K - 5d > 13. +R - 5e, K - 4c > 14. +R - 4d, K - 3b > 15. +R - 3c, K - 2a > 16. +R - 3a, K x 3a > 17. +VM - 3c, K - 2a > 18. +S - 1a mate