MESON Chess Problem Database
Problem Display
PID: 81750 (7k/P1RPpK1N/6P1/5p2/8/1p6/1nrrp3/q5R1 w - - 0 1)
Allison, Christopher John
The Field, 1952
(First published on Sat Oct 4 1952)
#2
7 + 9
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.a8Q#
- 2.a8R#
- 1...Qc1
- 2.a8Q#
- 2.a8R#
- 1...Qd1
- 2.a8Q#
- 2.a8R#
- 1...Qe1
- 2.a8Q#
- 2.a8R#
- 1...Qf1
- 2.a8Q#
- 2.a8R#
- 1...Qxg1
- 2.a8Q#
- 2.a8R#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.a8Q#
- 2.a8R#
- 1...Sc4
- 2.Rc8#
- 1...Qb1
- Tries
- 1.Sf6?
- threat
- 2.g7#
- 1...Qxg1
- 2.a8Q#
- 2.a8R#
- 1...exf6!
- threat
- 1.Rh1?
- threat
- 2.g7#
- 1...Qg1
- 2.a8Q#
- 2.a8R#
- 1...Sd1
- 2.Sg5#
- 2.Sf6#
- 2.Sf8#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.a8Q#
- 2.a8R#
- 1...Sc4
- 2.Rc8#
- 1...Qxh1!
- threat
- 1.Sf6?
- Keys
- 1.Sg5!
- threat
- 2.g7#
- 1...Sd1
- 2.Rh1#
- 1...Sd3
- 2.d8Q#
- 2.d8R#
- 1...Sa4
- 2.a8Q#
- 2.a8R#
- 1...Sc4
- 2.Rc8#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD::P=Q
- Q(a);N_GUARD,XR(A)::P=Q
- S(b);S_CUTR(d)::P=Q
- S(b);S_CUTQ(a)::P=Q
- S(b);S_CUTR(c)::R(D)
- Tries
- Try
- S(G);
- Threat
- P(B)
- Vars
- Q(a);N_GUARD,XR(A)::P=Q
- Refutation
- P(h);XS(G)
- Try
- R(A);
- Threat
- P(B)
- Vars
- Q(a);N_GUARD::P=Q
- S(b);S_CUTR(d)::P=Q
- S(b);S_CUTQ(a)::P=Q
- S(b);S_CUTR(c)::R(D)
- Refutation
- Q(a);XR(A)
- Try
- Actual
- S(G);
- Threat
- P(B)
- Vars
- S(b);S_CUTQ(a)::R(A)
- S(b);S_CUTR(d)::P=Q
- S(b);S_CUTQ(a)::P=Q
- S(b);S_CUTR(c)::R(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).