MESON Chess Problem Database

Problem Display
PID: 55152 (r5N1/1QP3P1/1PNk4/3p4/8/P4K1B/1B2R3/8 w - - 0 1)

Bartolovic, Hrvoje

Problem (Zagreb), 1970

r5N1/1QP3P1/1PNk4/3p4/8/P4K1B/1B2R3/8

#2

11 + 3

56 The Problemist 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3+
      • 2.Bxa3#
    • 1...Rf8+
      • 2.gxf8Q#
      • 2.gxf8B#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qxd5#
        • 2.Qc6#
      • 1...Rf8+
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Kc5
        • 2.Qc6#
      • 1...Ra5
        • 2.Qc6#
      • 1...d4
        • 2.Qd5#
        • 2.Qc6#
      • 1...Rxa3+!
    • 1.Sa5?
      • threat
        • 2.Qc6#
      • 1...Rf8+
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Kc5
        • 2.Qc6#
      • 1...Rxa5!
    • 1.Se5?
      • threat
        • 2.Qc6#
      • 1...Rxa3+
        • 2.Bxa3#
      • 1...Rf8+
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Kc5
        • 2.Qc6#
      • 1...Rxg8!
    • 1.Sa7?
      • threat
        • 2.Qc6#
      • 1...Rf8+
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Kc5
        • 2.Qc6#
      • 1...Rxa7!
    • 1.Sce7?
      • threat
        • 2.Qxd5#
        • 2.Qc6#
      • 1...Rxa3+
        • 2.Bxa3#
      • 1...Kc5
        • 2.Qc6#
      • 1...Ra5
        • 2.Qc6#
      • 1...d4
        • 2.Qd5#
        • 2.Qc6#
      • 1...Rf8+!
    • 1.Sb8?
      • threat
        • 2.Qc6#
      • 1...Rxa3+
        • 2.Bxa3#
      • 1...Kc5
        • 2.Qc6#
      • 1...Rxb8!
    • 1.Sd8?
      • threat
        • 2.Qc6#
      • 1...Rxa3+
        • 2.Bxa3#
      • 1...Kc5
        • 2.Qc6#
      • 1...Rxd8!
    • 1.Re6+?
      • 1...Kd7
        • 2.Se5#
        • 2.Sf6#
        • 2.c8Q#
        • 2.c8S#
        • 2.c8B#
        • 2.c8R#
      • 1...Kc5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qc6#
      • 1...Rxa3+
        • 2.Bxa3#
      • 1...Rf8+
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Kc5
        • 2.Qc6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);CHECK,OGATE,XP(C)::B(A),XR(c)
    • R(c);CHECK,OGATE::PXR(c)=Q
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);CHECK,OGATE::PXR(c)=Q
        • K(b);S_FLIGHT::QAR1(H)
        • R(c);::QAR1(H)
      • Refutation
        • R(c);CHECK,XP(C)
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • R(c);CHECK,OGATE::PXR(c)=Q
        • K(b);S_FLIGHT::QAR1(H)
      • Refutation
        • R(c);XS(G)
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • R(c);CHECK,OGATE,XP(C)::B(A),XR(c)
        • R(c);CHECK,OGATE::PXR(c)=Q
        • K(b);S_FLIGHT::QAR1(H)
      • Refutation
        • R(c);XS(K)
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • R(c);CHECK,OGATE::PXR(c)=Q
        • K(b);S_FLIGHT::QAR1(H)
      • Refutation
        • R(c);XS(G)
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);CHECK,OGATE,XP(C)::B(A),XR(c)
        • K(b);S_FLIGHT::QAR1(H)
        • R(c);::QAR1(H)
      • Refutation
        • R(c);CHECK
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • R(c);CHECK,OGATE,XP(C)::B(A),XR(c)
        • K(b);S_FLIGHT::QAR1(H)
      • Refutation
        • R(c);XS(G)
    • Try
      • S(G);
      • Threat
        • QAR1(H)
      • Vars
        • R(c);CHECK,OGATE,XP(C)::B(A),XR(c)
        • K(b);S_FLIGHT::QAR1(H)
      • Refutation
        • R(c);XS(G)
    • Try
      • R(B);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • QAR1(H)
    • Vars
      • R(c);CHECK,OGATE,XP(C)::B(A),XR(c)
      • R(c);CHECK,OGATE::PXR(c)=Q
      • K(b);S_FLIGHT::QAR1(H)
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