MESON Chess Problem Database
Problem Display
PID: 75052 (1rb5/Qnp1KP1P/2B2Rp1/4k1PR/5p2/4N1q1/3n1P1B/4r3 w - - 0 1)
Fica, Alexander
Labai, Zoltan
Best Problems, 2001
#2
11 + 10
| 6168 | Czech Album (2001-2003) | 2007 |
| 3485 | Sachova skladba | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Bxf4#
- 1...Qg2
- 2.Bxf4#
- 1...Qh3
- 2.Bxf4#
- 1...Qxg5
- 2.Bxf4#
- 1...Ra1
- 2.Qxa1#
- 1...Re2
- 2.Qa1#
- 1...Be6
- 2.Rxe6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Se4
- 2.Sc4#
- 1...Sa5
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sd6
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...fxe3
- 2.Bxg3#
- 1...f3
- 2.Bxg3#
- 1...Qg1
- Tries
- 1.Bxg3?
- threat
- 2.Bxf4#
- 1...fxg3
- 2.f4#
- 1...Sc5
- 2.Qxc5#
- 1...Bf5!
- threat
- 1.Rf5+?
- 1...gxf5
- 2.h8Q#
- 2.h8B#
- 1...Bxf5!
- 1...gxf5
- 1.fxg3?
- threat
- 2.gxf4#
- 1...fxe3
- 2.g4#
- 1...fxg3
- 2.Bxg3#
- 1...Sc5
- 2.Qxc5#
- 1...f3
- 2.g4#
- 1...Rf1!
- threat
- 1.f8S?
- threat
- 2.Sxg6#
- 1...gxh5
- 2.Sg6#
- 1...Sc5
- 2.Qxc5#
- 1...Bf5!
- threat
- 1.h8Q?
- threat
- 2.Rf5#
- 2.Rd6#
- 2.Re6#
- 2.Rxg6#
- 1...Qxe3
- 2.Rxf4#
- 1...Qxg5
- 2.Bxf4#
- 1...fxe3
- 2.Bxg3#
- 2.Rf3#
- 1...gxh5
- 2.Rf5#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Bf5
- 2.Rxf5#
- 2.Re6#
- 1...Bh3
- 2.Rf5#
- 2.Re6#
- 1...Bg4
- 2.Rf5#
- 2.Re6#
- 1...Be6
- 2.Rf5#
- 2.Rxe6#
- 1...Bd7
- 2.Rf5#
- 2.Re6#
- 1...Se4
- 2.Sc4#
- 2.Rf5#
- 2.Re6#
- 1...Sd6
- 2.Rf5#
- 2.Rxd6#
- 2.Re6#
- 2.Rxg6#
- 2.Qc5#
- 1...f3
- 2.Bxg3#
- 2.Rxf3#
- 2.Rf5#
- 1...Rxe3!
- threat
- 1.h8S?
- threat
- 2.Sxg6#
- 1...gxh5
- 2.Sg6#
- 1...Sc5
- 2.Qxc5#
- 1...Bf5!
- threat
- 1.h8B?
- threat
- 2.Rf5#
- 2.Rd6#
- 2.Re6#
- 2.Rxg6#
- 1...Qxe3
- 2.Rxf4#
- 1...Qxg5
- 2.Bxf4#
- 1...fxe3
- 2.Bxg3#
- 2.Rf3#
- 1...gxh5
- 2.Rf5#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...Bf5
- 2.Rxf5#
- 2.Re6#
- 1...Bh3
- 2.Rf5#
- 2.Re6#
- 1...Bg4
- 2.Rf5#
- 2.Re6#
- 1...Be6
- 2.Rf5#
- 2.Rxe6#
- 1...Bd7
- 2.Rf5#
- 2.Re6#
- 1...Se4
- 2.Sc4#
- 2.Rf5#
- 2.Re6#
- 1...Sd6
- 2.Rf5#
- 2.Rxd6#
- 2.Re6#
- 2.Rxg6#
- 2.Qc5#
- 1...f3
- 2.Bxg3#
- 2.Rxf3#
- 2.Rf5#
- 1...Rxe3!
- threat
- 1.Bxg3?
- Keys
- 1.Rxf4!
- threat
- 2.Qd4#
- 1...Qxg5+
- 2.Rf6#
- 1...Kxf4
- 2.Bxg3#
- 1...Qxf4
- 2.h8Q#
- 2.h8B#
- 1...Qxe3
- 2.h8Q#
- 2.h8B#
- 1...Sb3
- 2.Re4#
- 1...Sf3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sc5
- 2.Qxc7#
- threat
- 1.Rxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(c);OGATE,P_SPINP(d)::B(B),XP(d)
- Q(c);OGATE,P_PINR(G),P_SPINP(d),P_SPINQ(c),XP(D)::B(B),XP(d)
- R(a);N_GUARD::QAB(H),XR(a)
- R(a);N_GUARD::QAB(H)
- B(j);N_GUARD::R1(G),XB(j)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- S(g);N_GUARD::QAR2(H)
- S(g);N_GUARD::QAR2(H),XS(g)
- P(d);OGATEB,P_SPINQ(c),XS(C)::B(B),XQ(c)
- P(d);OGATEB,P_SPINQ(c)::B(B),XQ(c)
- Tries
- Try
- B(B);P_PINP(d),XQ(c)
- Threat
- B(B),XP(d)
- Vars
- P(d);N_SPINP(d),OGATE,XB(B)::P(A)
- S(g);N_GUARD::QAR2(H),XS(g)
- Refutation
- B(j);
- Try
- R(G);CHECK
- Vars
- P(f);XR(G)::P=Q
- Refutation
- B(j);XR(G)
- Try
- P(A);XQ(c)
- Threat
- P(A),XP(d)
- Vars
- P(d);XS(C)::B(B)+P(A)
- P(d);OGATE,P_SPINP(d),XP(A)::B(B),XP(d)
- S(g);N_GUARD::QAR2(H),XS(g)
- P(d);::B(B)+P(A)
- Refutation
- R(a);
- Try
- P(J);
- Threat
- S(J),XP(f)
- Vars
- P(f);XR(E)::S(J)
- S(g);N_GUARD::QAR2(H),XS(g)
- Refutation
- B(j);
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- Q(c);P_SPINP(d),XS(C)::QAB(K)+R(G),XP(d)
- Q(c);OGATE,P_PINR(G),P_SPINP(d),P_SPINQ(c),XP(D)::B(B),XP(d)
- Refutation
- R(a);XS(C)
- Try
- P(K);
- Threat
- S(K),XP(f)
- Vars
- P(f);XR(E)::S(K)
- S(g);N_GUARD::QAR2(H),XS(g)
- Refutation
- B(j);
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- Q(c);P_SPINP(d),XS(C)::B(K)+R(G),XP(d)
- Q(c);OGATE,P_PINR(G),P_SPINP(d),P_SPINQ(c),XP(D)::B(B),XP(d)
- Refutation
- R(a);XS(C)
- Try
- Actual
- R(G);XP(d)
- Threat
- QAB1(H)
- Vars
- Q(c);CHECK,OGATEB,P_SPINQ(c),XP(D)::B(B)+R(G)
- K(e);OGATEB,P_PINS(C),P_SPINQ(c),S_FLIGHT,XR(G)::B(B),XQ(c)
- Q(c);P_SPINQ(c),XR(G)::P=Q
- Q(c);XS(C)::P=Q
- S(b);N_GUARD::R1(G)
- S(b);N_GUARD::R1(G),XS(b)
- S(g);OGATE::QAB(H),XP(h)
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).