MESON Chess Problem Database

Problem Display
PID: 272191 (2K5/7B/8/1R1N1R2/p2k2p1/1r1P1r2/1P3P2/3Q4 w - - 0 1)

Bartolovic, Hrvoje

5th HM., Zurcher Woche, 1959

2K5/7B/8/1R1N1R2/p2k2p1/1r1P1r2/1P3P2/3Q4

#2

9 + 5

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3+
      • 2.bxc3#
    • 1...Rbxd3
      • 2.Qxa4#
    • 1...Rfxd3
      • 2.Qxg4#
    • 1...Re3
      • 2.fxe3#
  • Tries
    • 1.Qxb3?
      • threat
        • 2.Qc4#
        • 2.Qc3#
      • 1...Rxd3
        • 2.Qxa4#
        • 2.Qb4#
      • 1...Rxf5
        • 2.Qc3#
      • 1...axb3!
    • 1.Qxf3?
      • threat
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rc3+
        • 2.bxc3#
      • 1...Rxd3
        • 2.Qxg4#
        • 2.Qf4#
      • 1...Rxb5
        • 2.Qe3#
      • 1...gxf3!
    • 1.Qc1?
      • threat
        • 2.Qc4#
      • 1...Rc3+
        • 2.Qxc3#
      • 1...Rbxd3
        • 2.Rb4#
      • 1...Rfxd3
        • 2.Qf4#
      • 1...Rxf5
        • 2.Qe3#
      • 1...Rb4
        • 2.Qc3#
      • 1...Kxd3!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qe4#
      • 1...Rc3+
        • 2.Qxc3#
      • 1...Kxd3
        • 2.Rf4#
      • 1...Rbxd3
        • 2.Qb4#
      • 1...Rxb5
        • 2.Qc3#
      • 1...Rfxd3
        • 2.Rf4#
      • 1...Re3
        • 2.Qxe3#
      • 1...Rf4
        • 2.Rxf4#
        • 2.Qe3#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE::P(B),XR(a)
    • R(a);OGATE,P_SPINR(a),SBLOCK,XP(D)::QAR(A),XP(c)
    • R(b);OGATE,P_SPINR(b),SBLOCK,XP(D)::QAR(A),XP(e)
    • R(b);OGATE::P(C),XR(b)
  • Tries
    • Try
      • Q(A);XR(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XR(G)::QAB1(A)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);CHECK,OGATE::P(B),XR(a)
        • R(a);XR(E)::QAB1(A)
      • Refutation
        • P(e);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • R(a);CHECK,N_GUARD::QAB1(A),XR(a)
        • R(a);N_GUARD,SBLOCK,XP(D)::R(E)
        • R(b);N_GUARD,SBLOCK,XP(D)::QAR2(A)
        • R(b);N_GUARD,XR(G)::QAB1(A)
        • R(a);N_GUARD::QAB1(A)
      • Refutation
        • K(d);P-FLIGHT,XP(D)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(a);CHECK,N_GUARD::QAB1(A),XR(a)
      • K(d);P-FLIGHT,S_CUTR(b),XP(D)::B(H)+R(G)
      • R(a);N_GUARD,SBLOCK,XP(D)::QAR2(A)
      • R(a);N_GUARD,XR(E)::QAB1(A)
      • R(b);N_GUARD,XP(D)::R(G)
      • R(b);N_GUARD::QAB1(A),XR(b)
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