MESON Chess Problem Database
Problem Display
PID: 254604 (5n2/pP6/Pq1R4/N1kN3K/BR1r2p1/P5B1/8/2n5 w - - 0 1)
Carson, J Roy
Manchester Weekly Times, 1891
(First published on Fri Jul 24 1891)
#2
10 + 7
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc7
- 2.Rb5#
- 1...Qd8
- 2.Rb5#
- 1...Qb5
- 2.Rxb5#
- 1...Qxd6
- 2.Rb5#
- 1...Qxb7
- 2.Sxb7#
- 1...Rd1
- 2.Rc4#
- 1...Rd2
- 2.Rc4#
- 1...Rd3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Sd3
- 2.Sb3#
- 1...Qc7
- Tries
- 1.Sf6?
- 1...Rd5+
- 2.Rxd5#
- 1...Qxa5
- 2.Rc6#
- 1...Qxb4
- 2.Rc6#
- 1...Qxd6
- 2.Rb5#
- 1...Qxb7
- 2.Sxb7#
- 1...Rxb4
- 2.Rd5#
- 1...Rxd6
- 2.Rc4#
- 1...Rf4
- 2.Rd5#
- 1...Se6
- 2.Sd7#
- 1...Qc7
- 2.Rb5#
- 1...Qd8
- 2.Rb5#
- 2.Rc6#
- 1...Qb5
- 2.Rxb5#
- 1...Qc6
- 2.Rxc6#
- 1...Rd1
- 2.Se4#
- 2.Rc4#
- 1...Rd2
- 2.Se4#
- 2.Rc4#
- 1...Rd3
- 2.Se4#
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 2.Rd5#
- 1...Re4
- 2.Sxe4#
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Sd3
- 2.Sb3#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Qxa6!
- 1...Rd5+
- 1.Sf6?
- Keys
- 1.Sc7!
- 1...Rd5+
- 2.Rxd5#
- 1...Qxa5
- 2.Rc6#
- 1...Qxc7
- 2.Rb5#
- 1...Qxb4
- 2.Rc6#
- 1...Qxa6
- 2.Sxa6#
- 1...Qxd6
- 2.Rb5#
- 1...Qxb7
- 2.Sxb7#
- 1...Rxb4
- 2.Rd5#
- 1...Rxd6
- 2.Rc4#
- 1...Rf4
- 2.Rd5#
- 1...Se6
- 2.Sxe6#
- 1...Qb5
- 2.Rxb5#
- 1...Qc6
- 2.Rxc6#
- 1...Rd1
- 2.Rc4#
- 1...Rd2
- 2.Rc4#
- 1...Rd3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 2.Rd5#
- 1...Re4
- 2.Rd5#
- 1...Sa2
- 2.Sb3#
- 1...Se2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...Sd3
- 2.Sb3#
- 1...Sg6
- 2.Se6#
- 1...Sd7
- 2.Se6#
- 1...Sh7
- 2.Se6#
- 1...Rd5+
- 1.Sc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 2
- Sets
- Q(e);N_GUARD::R1(D)
- Q(e);N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD,XR(I)::R1(D)
- Q(e);XP(J)::S(E),XQ(e)
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD::R1(D),XR(b)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- Tries
- Try
- S(F);
- Vars
- R(b);CHECK,N_GUARD::R1(I),XR(b)
- Q(e);N_GUARD,XS(E)::R1(I)
- Q(e);N_GUARD,XR(D)::R1(I)
- Q(e);N_GUARD,XR(I)::R1(D)
- Q(e);XP(J)::S(E),XQ(e)
- R(b);N_GUARD,XR(D)::R1(I)
- R(b);N_GUARD,XR(I)::R1(D)
- R(b);N_GUARD::R1(I)
- S(g);N_GUARD::S(F)
- Q(e);N_GUARD::R1(D)
- Q(e);N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD::R1(I),XQ(e)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(g);N_GUARD::S(F),XS(g)
- Refutation
- Q(e);XP(H)
- Try
- Actual
- S(F);
- Vars
- R(b);CHECK,N_GUARD::R1(I),XR(b)
- Q(e);N_GUARD,XS(E)::R1(I)
- Q(e);N_GUARD,XS(F)::R1(D)
- Q(e);N_GUARD,XR(D)::R1(I)
- Q(e);XP(H)::S(F),XQ(e)
- Q(e);N_GUARD,XR(I)::R1(D)
- Q(e);XP(J)::S(E),XQ(e)
- R(b);N_GUARD,XR(D)::R1(I)
- R(b);N_GUARD,XR(I)::R1(D)
- R(b);N_GUARD::R1(I)
- S(g);N_GUARD::S(F),XS(g)
- Q(e);N_GUARD::R1(D),XQ(e)
- Q(e);N_GUARD::R1(I),XQ(e)
- R(b);N_GUARD::R1(D)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(g);N_GUARD::S(F)
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).