MESON Chess Problem Database
Problem Display
PID: 139783 (Kb1R3r/1N2p1P1/3PP1q1/6P1/QPBkP2R/1Ppp4/3N1P1B/7b w - - 0 1)
Prikril, Mato
Liga Problemista, 1981/8
#2
16 + 8
| 6490 | yacpdb | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bf3
- 2.Sxf3#
- 1...Bxe4
- 2.Sf3#
- 1...Bxd6
- 2.Qa7#
- 1...Ba7
- 2.Qxa7#
- 1...cxd2
- 2.Qa1#
- 1...c2
- 2.Qa1#
- 1...Qxe4
- Tries
- 1.Sa5?
- threat
- 2.Sc6#
- 1...cxd2
- 2.Qa1#
- 1...c2
- 2.Qa1#
- 1...Qe8!
- threat
- 1.Bg1?
- threat
- 2.f4#
- 1...Ke5
- 2.f4#
- 1...Qxe4
- 2.gxh8Q#
- 2.gxh8B#
- 1...cxd2
- 2.Qa1#
- 1...c2
- 2.Qa1#
- 1...Bf3
- 2.Sxf3#
- 1...Qxg5!
- threat
- 1.dxe7+?
- 1...Bd6
- 2.Qa7#
- 1...Rxd8!
- 1...Bd6
- 1.gxh8Q+?
- 1...Qg7
- 2.Qxg7#
- 1...Qf6!
- 1...Qg7
- 1.gxh8B+?
- 1...Qg7
- 2.Bxg7#
- 1...Qf6!
- 1...Qg7
- 1.Sa5?
- Keys
- 1.b5!
- threat
- 2.Bd5#
- 1...Qxe4
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxe4
- 2.Sf3#
- 1...Bxd6
- 2.Qa7#
- 1...cxd2
- 2.Qa1#
- 1...c2
- 2.Qa1#
- threat
- 1.b5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(e);N_GUARD,P_PINS(M),P_SPINQ(e),XP(H)::PXR(h)=Q
- B(a);N_GUARD::S(A),XB(a)
- B(a);N_GUARD,P_PINS(M),P_SPINB(a),XP(H)::S(A)
- B(g);N_GUARD,P_PINR(P),P_SPINB(g),XP(K)::QAB(E)
- B(g);N_GUARD,P_PINR(P)::QAB(E),XB(g)
- P(b);OGATEB,XS(A)::QAB(E)
- P(b);OGATEB::QAB(E)
- Tries
- Try
- S(M);P_SPINP(H)
- Threat
- S(M)
- Vars
- P(b);OGATEB,XS(A)::QAB(E)
- P(b);OGATEB::QAB(E)
- Refutation
- Q(e);
- Try
- B(C);
- Threat
- B(C)+P(B)
- Vars
- K(d);S_FLIGHT::P(B)
- Q(e);N_GUARD,P_PINS(M),P_SPINQ(e),XP(H)::PXR(h)=Q
- P(b);OGATEB,XS(A)::QAB(E)
- P(b);OGATEB::QAB(E)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- Q(e);XP(J)
- Try
- P(K);CHECK,XP(f)
- Vars
- B(g);P_PINR(P),P_SPINB(g)::QAB(E)
- Refutation
- R(h);XR(P)
- Try
- P(N);CHECK,XR(h)
- Vars
- Q(e);N_GUARD,P_SPINQ(e)::QAB(N),XQ(e)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- P(N);CHECK,XR(h)
- Vars
- Q(e);N_GUARD,P_SPINQ(e)::B(N),XQ(e)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- Actual
- P(F);
- Threat
- QAR(E)+B(G)
- Vars
- Q(e);N_GUARD,P_PINS(M),P_SPINQ(e),XP(H)::PXR(h)=Q
- B(a);N_GUARD,P_PINS(M),P_SPINB(a),XP(H)::S(A)
- B(g);N_GUARD,P_PINR(P),P_SPINB(g),XP(K)::QAB(E)
- P(b);OGATEB,XS(A)::QAB(E)
- P(b);OGATEB::QAB(E)
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).