MESON Chess Problem Database
Problem Display
PID: 51321 (4NBrn/2b1PppK/8/r4kpp/2Q5/4R2P/5pN1/1b1R4 w - - 0 1)
Sumner, Christopher Richard Benson
Manchester Guardian, 1957
#2
9 + 11
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rf3#
- 1...Ba2
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Bh2
- 2.Qc8#
- 1...Bg3
- 2.Qc8#
- 1...Bf4
- 2.Qc8#
- 1...Be5
- 2.Qc8#
- 1...Bb6
- 2.Qc8#
- 1...Bd6
- 2.Qc8#
- 1...Bb8
- 2.Qc8#
- 1...Bd8
- 2.Qc8#
- 1...Sg6
- 2.Qxf7#
- 1...h4
- 2.Qg4#
- 1...f6
- 2.Qe6#
- 1...Re5
- Tries
- 1.Rd5+?
- 1...Be5
- 2.Rexe5#
- 2.Qc8#
- 1...Rxd5!
- 1...Be5
- 1.Qb5+?
- 1...Be5
- 2.Rxe5#
- 2.Qd7#
- 1...Rxb5!
- 1...Be5
- 1.Qd5+?
- 1...Be5
- 2.Rf3#
- 2.Rxe5#
- 2.Qd7#
- 1...Rxd5!
- 1...Be5
- 1.Qc5+?
- 1...Be5
- 2.Rxe5#
- 2.Qc8#
- 1...Rxc5!
- 1...Be5
- 1.Qxc7?
- threat
- 2.Qxa5#
- 2.Qd7#
- 2.Qc8#
- 1...Re5
- 2.Rxe5#
- 2.Qxe5#
- 1...g4
- 2.Qf4#
- 2.Qxa5#
- 1...f1Q
- 2.Rxf1#
- 2.Qd7#
- 2.Qc8#
- 1...f1B
- 2.Rxf1#
- 2.Qd7#
- 2.Qc8#
- 1...Ra4
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 2.Qd7#
- 2.Qc8#
- 1...Ra1
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 2.Qd7#
- 2.Qc8#
- 1...Ra2
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 2.Qd7#
- 2.Qc8#
- 1...Ra3
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 2.Qd7#
- 2.Qc8#
- 1...Rb5
- 2.Qd7#
- 2.Qc8#
- 1...Rc5
- 2.Qxc5#
- 2.Qd7#
- 1...Rd5
- 2.Rxd5#
- 1...Ra6
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 1...Ra7
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 1...Ra8
- 2.Rd5#
- 2.Re5#
- 2.Qe5#
- 2.Qc5#
- 2.Qd7#
- 1...Ba2
- 2.Qc2#
- 1...Bd3
- 2.Qd7#
- 2.Qc8#
- 1...Sg6
- 2.Qd7#
- 2.Qc8#
- 1...Be4!
- threat
- 1.Rd5+?
- Keys
- 1.Rd6!
- 1...Rxf8
- 2.Sxg7#
- 1...Bxd6
- 2.Qc8#
- 1...Be4
- 2.Qxe4#
- 1...g4
- 2.Qf4#
- 1...f1Q
- 2.Qxf1#
- 1...f1S
- 2.Qxf1#
- 1...f1B
- 2.Qxf1#
- 1...f1R
- 2.Qxf1#
- 1...Ra4
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra1
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra2
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra3
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Rb5
- 2.Qxb5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Rf3#
- 1...Ra6
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra7
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra8
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ba2
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bb6
- 2.Qc8#
- 1...Bb8
- 2.Qc8#
- 1...Bd8
- 2.Qc8#
- 1...Sg6
- 2.Qxf7#
- 1...h4
- 2.Qg4#
- 1...f6
- 2.Qe6#
- 1...g6
- 2.Rf6#
- 1...Rxf8
- 1.Rd6!
Anticipated by 22221(1882), 4616(1884)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 4
- Sets
- R(c);SBLOCK,S_CUTB(g)::R(C)
- B(a);N_GUARD::QAB(E),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(g);OGATE::QAB(E)
- S(k);N_GUARD::QAR2(E),XP(h)
- P(f);N_GUARD::QAB1(E)
- P(h);N_GUARD::QAB1(E)
- Tries
- Try
- R(A);CHECK
- Refutation
- R(c);XR(A)
- Try
- Q(E);CHECK
- Refutation
- R(c);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- R(c);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- R(c);XQ(E)
- Try
- Q(E);XB(g)
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD::R(A),XR(c)
- B(a);N_GUARD::QAB(E)
- Refutation
- B(a);
- Try
- Actual
- R(A);
- Vars
- R(j);N_GUARD,XB(I)::S(H),XP(i)
- B(g);OGATE,XR(A)::QAB(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- P(e);N_GUARD::QAR1(E)
- P(b);OGATEB::QAR(E),XQ(b)
- P(b);OGATEB::QAR(E),XS(b)
- P(b);OGATEB::QAR(E),XB(b)
- P(b);OGATEB::QAR(E),XR(b)
- R(c);N_GUARD::QAR(E),XR(c)
- R(c);N_GUARD::QAR2(E),XR(c)
- R(c);SBLOCK::R(C)
- B(a);N_GUARD::QAB(E),XB(a)
- B(g);OGATE::QAB(E)
- S(k);N_GUARD::QAR2(E),XP(h)
- P(f);N_GUARD::QAB1(E)
- P(h);N_GUARD::QAB1(E)
- P(i);N_GUARD::R1(A)
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).