MESON Chess Problem Database
Problem Display
PID: 96360 (RK3kB1/1pN1pp1P/3p3P/8/1r3N2/2r1q3/8/3Q4 w - - 0 1)
Delobel, Bernard
Problemesis, 2004
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Ka7#
- 1...Qd2
- 2.Ka7#
- 1...Qxf4
- 2.Ka7#
- 1...Qa7+
- 2.Kxa7#
- 1...Qe1
- 2.Ka7#
- 1...Qe2
- 2.Ka7#
- 1...Qd3
- 2.Ka7#
- 1...Qf3
- 2.Ka7#
- 1...Qg3
- 2.Ka7#
- 1...Qe4
- 2.Ka7#
- 1...Qe5
- 2.Ka7#
- 1...Rc5
- 2.Ka7#
- 1...Rxc7
- 2.Kxc7#
- 1...Rc4
- 2.Kxb7#
- 1...Rd4
- 2.Ka7#
- 2.Kxb7#
- 1...Re4
- 2.Kxb7#
- 1...Rxf4
- 2.Kxb7#
- 1...Rb6
- 2.Ka7#
- 1...b5
- 2.Kb7#
- 1...b6
- 2.Ka7#
- 2.Kb7#
- 1...e5
- 2.Qxd6#
- 1...e6
- 2.Qxd6#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Sg6#
- 1...Qc1
- Tries
- 1.Qh5?
- threat
- 2.Qxf7#
- 1...Qa7+
- 2.Kxa7#
- 1...Qxf4
- 2.Ka7#
- 1...Rxf4
- 2.Kxb7#
- 1...f5
- 2.Sg6#
- 2.Qf7#
- 2.Qe8#
- 2.Qxf5#
- 1...f6
- 2.Sg6#
- 2.Qf7#
- 2.Qe8#
- 1...Qe6!
- threat
- 1.Qf1?
- threat
- 2.Sg6#
- 1...Qa7+
- 2.Kxa7#
- 1...Qxf4
- 2.Ka7#
- 1...Rxc7
- 2.Kxc7#
- 1...Rxf4
- 2.Kxb7#
- 1...Qg1
- 2.Sfe6#
- 1...Qd3
- 2.Ka7#
- 2.Sfe6#
- 1...Qf3
- 2.Ka7#
- 1...Qg3
- 2.Ka7#
- 2.Sfe6#
- 1...Qe4
- 2.Ka7#
- 1...Qe6
- 2.Sfxe6#
- 1...Qf2!
- threat
- 1.Qd4?
- threat
- 2.Ka7#
- 2.Qg7#
- 1...Rxc7
- 2.Kxc7#
- 1...Rxd4
- 2.Ka7#
- 2.Kxb7#
- 1...e5
- 2.Qxd6#
- 1...e6
- 2.Qxd6#
- 1...Qg1
- 2.Ka7#
- 1...Qg3
- 2.Ka7#
- 1...Qh3
- 2.Qg7#
- 1...Qe5
- 2.Ka7#
- 1...Qe6
- 2.Qg7#
- 1...Ra3
- 2.Qg7#
- 1...Ra4
- 2.Qg7#
- 1...f6
- 2.Ka7#
- 2.Sg6#
- 1...Qxd4!
- threat
- 1.Qd5?
- threat
- 2.Qxf7#
- 1...Qa7+
- 2.Kxa7#
- 1...Qxf4
- 2.Ka7#
- 1...Rxf4
- 2.Kxb7#
- 1...e6
- 2.Qxd6#
- 1...f5
- 2.Sg6#
- 2.Qf7#
- 2.Qxf5#
- 1...f6
- 2.Sg6#
- 2.Qf7#
- 1...Qe6!
- threat
- 1.Qh5?
- Keys
- 1.Qf3!
- threat
- 2.Sg6#
- 1...Qa7+
- 2.Kxa7#
- 1...Qxf4
- 2.Ka7#
- 1...Qxf3
- 2.Ka7#
- 1...Rxc7
- 2.Kxc7#
- 1...Rxf4
- 2.Kxb7#
- 1...Qg1
- 2.Sfe6#
- 1...Qd3
- 2.Ka7#
- 2.Sfe6#
- 1...Qe4
- 2.Ka7#
- 1...Qe6
- 2.Sfxe6#
- threat
- 1.Qf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 16
- Sets
- Q(b);::R(F)+K(G)
- Q(b);XS(B)::R(F)+K(G)
- Q(b);CHECK::R(F)+K(G),XQ(b)
- R(a);::R(F)+K(G)
- R(a);XS(D)::R(F)+K(G),XR(a)
- R(c);::R(F)+K(G),XP(e)
- R(c);XS(B)::R(F)+K(G),XP(e)
- R(c);::R(F)+K(G)
- P(e);::R(F)+K(G)
- P(f);OGATEB::QAB(A),XP(d)
- P(g);N_GUARD::S(B)
- Tries
- Try
- Q(A);
- Threat
- QAR1(A),XP(g)
- Vars
- Q(b);CHECK::R(F)+K(G),XQ(b)
- Q(b);XS(B)::R(F)+K(G)
- R(c);XS(B)::R(F)+K(G),XP(e)
- Refutation
- Q(b);
- Try
- Q(A);
- Threat
- S(B)
- Vars
- Q(b);CHECK::R(F)+K(G),XQ(b)
- Q(b);XS(B)::R(F)+K(G)
- R(a);XS(D)::R(F)+K(G),XR(a)
- R(c);XS(B)::R(F)+K(G),XP(e)
- Q(b);N_GUARD::S(B)
- Q(b);::R(F)+K(G)
- Q(b);N_GUARD::S(B),XQ(b)
- Refutation
- Q(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(a);XS(D)::R(F)+K(G),XR(a)
- P(f);OGATEB::QAB(A),XP(d)
- Q(b);::R(F)+K(G)
- Q(b);::QAB1(A)
- R(a);::QAB1(A)
- R(c);::QAB1(A)
- Refutation
- Q(b);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A),XP(g)
- Vars
- Q(b);CHECK::R(F)+K(G),XQ(b)
- Q(b);XS(B)::R(F)+K(G)
- R(c);XS(B)::R(F)+K(G),XP(e)
- P(f);OGATEB::QAB(A),XP(d)
- Refutation
- Q(b);
- Try
- Actual
- Q(A);
- Threat
- S(B)
- Vars
- Q(b);CHECK::R(F)+K(G),XQ(b)
- Q(b);XS(B)::R(F)+K(G)
- Q(b);XQ(A)::R(F)+K(G)
- R(a);XS(D)::R(F)+K(G),XR(a)
- R(c);XS(B)::R(F)+K(G),XP(e)
- Q(b);N_GUARD::S(B)
- Q(b);::R(F)+K(G)
- Q(b);N_GUARD::S(B),XQ(b)
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).