MESON Chess Problem Database

Problem Display
PID: 23450 (8/4Q3/8/8/7K/5p2/5r1k/5R1b w - - 0 1)

Bron, Vladimir Akimovich

1st HM., Cuvasijos resp. konkursas, 1955

8/4Q3/8/8/7K/5p2/5r1k/5R1b

#2

3 + 4

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qd6#
      • 2.Qe5#
      • 2.Qc7#
  • Tries
    • 1.Rxf2+?
      • 1...Kg1
        • 2.Qe1#
      • 1...Bg2!
    • 1.Qg5?
      • threat
        • 2.Qg1#
        • 2.Qg3#
      • 1...Rxf1
        • 2.Qg3#
      • 1...Bg2
        • 2.Qf4#
        • 2.Qg3#
        • 2.Qe5#
      • 1...Rg2!
    • 1.Qe6?
      • threat
        • 2.Qh3#
      • 1...Kg2
        • 2.Qh3#
      • 1...Bg2
        • 2.Qe5#
        • 2.Qd6#
      • 1...Rxf1!
    • 1.Qd7?
      • threat
        • 2.Qh3#
      • 1...Kg2
        • 2.Qh3#
      • 1...Bg2
        • 2.Qd6#
        • 2.Qc7#
      • 1...Rxf1!
    • 1.Qg7?
      • threat
        • 2.Qg1#
        • 2.Qg3#
      • 1...Rxf1
        • 2.Qg3#
      • 1...Bg2
        • 2.Qe5#
        • 2.Qg3#
        • 2.Qc7#
      • 1...Rg2!
  • Keys
    • 1.Qe1!
      • 1...Kg2
        • 2.Rxf2#
        • 2.Qxf2#
      • 1...Rxf1
        • 2.Qg3#
      • 1...Rg2
        • 2.Rxh1#
      • 1...Ra2
        • 2.Qg3#
      • 1...Rb2
        • 2.Qg3#
      • 1...Rc2
        • 2.Qg3#
      • 1...Rd2
        • 2.Qg3#
      • 1...Re2
        • 2.Qg3#
      • 1...Bg2
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK,XR(b)
      • Vars
        • K(c);S_FLIGHT::QAR2(C)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XR(A)::QAB1(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT::QAB1(C)
      • Refutation
        • R(b);XR(A)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(c);P-FLIGHT::QAB1(C)
      • Refutation
        • R(b);XR(A)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XR(A)::QAB1(C)
      • Refutation
        • R(b);
  • Actual
    • Q(C);
    • Vars
      • R(b);OGATE,XR(A)::QAB1(C)
      • R(b);SBLOCK::R1(A),XB(a)
      • R(b);OGATE,SBLOCK::QAB1(C)
      • R(b);OGATE::QAB1(C)
      • B(a);SBLOCK::QAB(C)
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