MESON Chess Problem Database
Problem Display
PID: 15295 (8/1B6/5pp1/2p3Qn/3pK1p1/6pb/1n2PPkb/4BR1R w - - 0 1)
Salazar Lopez, Francisco
9th Place, 02. WCCT, 1980-1983
#2
8 + 11
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...fxg5
- 2.Ke5#
- 1...f5+
- 2.Ke5#
- 1...Bg1
- Tries
- 1.Bd5?
- 1...f5+
- 2.Ke5#
- 1...fxg5
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...gxf2!
- 1...f5+
- 1.Bc6?
- 1...f5+
- 2.Ke5#
- 1...fxg5
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...gxf2!
- 1...f5+
- 1.Ba8?
- 1...f5+
- 2.Ke5#
- 1...fxg5
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...gxf2!
- 1...f5+
- 1.Qc1?
- 1...f5+
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...gxf2!
- 1...f5+
- 1.Qd2?
- 1...f5+
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...gxf2!
- 1...f5+
- 1.Qe3?
- 1...f5+
- 2.Ke5#
- 1...gxf2
- 2.Qxf2#
- 1...dxe3
- 2.Kxe3#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...d3!
- 1...f5+
- 1.Qf4?
- 1...f5+
- 2.Ke5#
- 1...Sxf4
- 2.Kxf4#
- 1...gxf2
- 2.Qxh2#
- 2.Qxf2#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...Sg7!
- 1...f5+
- 1.Qxf6?
- threat
- 2.Ke5#
- 1...gxf2
- 2.Qxf2#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd3
- 2.Kxd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sxf6+!
- threat
- 1.Qh6?
- 1...f5+
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...gxf2!
- 1...f5+
- 1.Qxg4?
- threat
- 2.Qf3#
- 1...f5+
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 2.Qxh3#
- 1...Bxg4!
- threat
- 1.Qxc5?
- threat
- 2.Kxd4#
- 1...Bg1
- 2.Rfxg1#
- 1...Sf4
- 2.Kxf4#
- 1...d3
- 2.Ke3#
- 2.Kd4#
- 1...gxf2!
- threat
- 1.Qd5?
- 1...f5+
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...gxf2!
- 1...f5+
- 1.Qe5?
- 1...gxf2
- 2.Qxh2#
- 1...fxe5
- 2.Kxe5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...f5+!
- 1...gxf2
- 1.Qf5?
- 1...gxf5+
- 2.Kxf5#
- 1...gxf2
- 2.Qxf2#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5!
- 1...gxf5+
- 1.Qxh5?
- threat
- 2.Kf4#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd3
- 2.Kxd3#
- 1...g5
- 2.Kf5#
- 1...gxf2!
- threat
- 1.Qxg6?
- threat
- 2.Kf5#
- 1...f5+
- 2.Ke5#
- 2.Kxf5#
- 1...Bg1
- 2.Rfxg1#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...gxf2!
- threat
- 1.fxg3?
- 1...f5+
- 2.Ke5#
- 1...Bxg3
- 2.Rfg1#
- 1...fxg5
- 2.Ke5#
- 1...Bg1
- 2.Rfxg1#
- 1...d3
- 2.Ke3#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...c4
- 2.Kxd4#
- 1...Sxg3+!
- 1...f5+
- 1.Bd5?
- Keys
- 1.Qh4!
- 1...f5+
- 2.Ke5#
- 1...gxf2
- 2.Qxf2#
- 1...Bg1
- 2.Rfxg1#
- 1...Sd1
- 2.Kd3#
- 1...Sd3
- 2.Kxd3#
- 1...Sa4
- 2.Kd3#
- 1...Sc4
- 2.Kd3#
- 1...Sf4
- 2.Kxf4#
- 1...Sg7
- 2.Kf4#
- 1...d3
- 2.Ke3#
- 1...c4
- 2.Kxd4#
- 1...g5
- 2.Kf5#
- 1...f5+
- 1.Qh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(j);XQ(G)::B(H)+K(F)
- P(j);CHECK::B(H)+K(F)
- Tries
- Try
- B(H);
- Vars
- P(j);CHECK::B(H)+K(F)
- P(j);XQ(G)::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- Refutation
- P(d);P_SPINP(g),XP(E)
- Try
- B(H);
- Vars
- P(j);CHECK::B(H)+K(F)
- P(j);XQ(G)::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- Refutation
- P(d);P_SPINP(g),XP(E)
- Try
- B(H);
- Vars
- P(j);CHECK::B(H)+K(F)
- P(j);XQ(G)::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- Refutation
- P(d);P_SPINP(g),XP(E)
- Try
- Q(G);
- Vars
- P(j);CHECK::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(F)
- Refutation
- P(d);XP(E)
- Try
- Q(G);
- Vars
- P(j);CHECK::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(F)
- Refutation
- P(d);XP(E)
- Try
- Q(G);
- Vars
- P(j);CHECK::B(H)+K(F)
- P(d);OGATE,XP(E)::QAR1(G),XP(d)
- P(f);XQ(G)::B(H)+K(F),XP(f)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(F)
- Refutation
- P(f);
- Try
- Q(G);
- Vars
- P(j);CHECK::B(H)+K(F)
- S(i);XQ(G)::B(H)+K(F),XS(i)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(F)
- Refutation
- S(i);
- Try
- Q(G);XP(j)
- Threat
- B(H)+K(F)
- Vars
- P(d);OGATE,XP(E)::QAR1(G),XP(d)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F),XS(a)
- S(a);::B(H)+K(F)
- S(i);::B(H)+K(F),XS(i)
- Refutation
- S(i);CHECK,XQ(G)
- Try
- Q(G);
- Vars
- P(j);CHECK::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(F)
- Refutation
- P(d);XP(E)
- Try
- Q(G);P_PINP(d),XP(g)
- Threat
- QAB1(G)
- Vars
- P(j);CHECK::B(H)+K(F)
- Refutation
- B(e);N_SPINP(d),XQ(G)
- Try
- Q(G);XP(h)
- Threat
- B(H)+K(F),XP(f)
- Vars
- B(c);N_GUARD::R1(B),XB(c)
- S(i);::B(H)+K(F),XS(i)
- Refutation
- P(d);XP(E)
- Try
- Q(G);
- Vars
- P(j);CHECK::QAB(G)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::QAB(G)+K(F)
- S(a);::QAB(G)+K(F),XS(a)
- S(i);::QAB(G)+K(F),XS(i)
- S(i);::QAB(G)+K(F)
- P(f);::QAB(G)+K(F)
- P(h);::QAB(G)+K(F),XP(f)
- P(k);::QAB(G)+K(F)
- Refutation
- P(d);XP(E)
- Try
- Q(G);
- Vars
- P(d);OGATE,XP(E)::QAR1(G),XB(c)
- P(j);XQ(G)::B(H)+K(F),XP(j)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(F)
- Refutation
- P(j);CHECK
- Try
- Q(G);
- Vars
- P(k);CHECK,XQ(G)::B(H)+K(F),XP(k)
- P(d);OGATE,XP(E)::QAR1(G),XP(d)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- Refutation
- P(k);
- Try
- Q(G);XS(i)
- Threat
- B(H)+K(F)
- Vars
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F),XS(a)
- P(k);::B(H)+K(F)
- Refutation
- P(d);XP(E)
- Try
- Q(G);XP(k)
- Threat
- B(H)+K(F)
- Vars
- B(c);N_GUARD::R1(B),XB(c)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- Refutation
- P(d);P_SPINP(g),XP(E)
- Try
- P(E);XP(d)
- Vars
- P(j);CHECK::B(H)+K(F)
- B(c);N_GUARD,XP(E)::R1(B)
- P(j);XQ(G)::B(H)+K(F)
- B(c);N_GUARD::R1(B),XB(c)
- P(f);::B(H)+K(F)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- Refutation
- S(i);CHECK,XP(E)
- Try
- Actual
- Q(G);
- Vars
- P(j);CHECK::B(H)+K(F)
- P(d);OGATE,XP(E)::QAR1(G),XP(d)
- B(c);N_GUARD::R1(B),XB(c)
- S(a);::B(H)+K(F)
- S(a);::B(H)+K(F),XS(a)
- S(i);::B(H)+K(F),XS(i)
- S(i);::B(H)+K(F)
- P(f);::B(H)+K(F)
- P(h);::B(H)+K(F),XP(f)
- P(k);::B(H)+K(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).