MESON Chess Problem Database

Problem Display
PID: 99711 (3b3Q/1K3pNn/8/1N6/4B3/8/k6r/1R6 w - - 0 1)

Kisis, Imants J

Magyar Sakkelet, 1975

3b3Q/1K3pNn/8/1N6/4B3/8/k6r/1R6

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Qa8#
    • 1...Bg5
      • 2.Qa8#
    • 1...Bf6
      • 2.Qa8#
    • 1...Sg5
      • 2.Qxh2#
    • 1...Sf6
      • 2.Qxh2#
    • 1...Sf8
      • 2.Qxh2#
    • 1...f5
      • 2.Qg8#
    • 1...f6
      • 2.Qg8#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Qa1#
      • 1...Rb2
        • 2.Qxb2#
      • 1...Bf6
        • 2.Qa8#
      • 1...f6
        • 2.Qg8#
      • 1...Sf6!
    • 1.Se6?
      • threat
        • 2.Qa1#
      • 1...Rb2
        • 2.Qxb2#
      • 1...Bf6
        • 2.Qa8#
      • 1...Sf6
        • 2.Qxh2#
      • 1...f6!
    • 1.Se8?
      • threat
        • 2.Qa1#
      • 1...Rb2
        • 2.Qxb2#
      • 1...Sf6
        • 2.Qxh2#
      • 1...f6
        • 2.Qg8#
      • 1...Bf6!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qa1#
      • 1...Rb2
        • 2.Qxb2#
      • 1...Bf6
        • 2.Qa8#
      • 1...Sf6
        • 2.Qxh2#
      • 1...f6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(e);OGATE::QAR(F)
    • S(d);OGATE::QAB1(F),XR(b)
    • P(c);OGATEB::QAB(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • R(b);N_GUARD,P_PINS(C)::QAR1(F),XR(b)
        • B(e);OGATE::QAR(F)
        • P(c);OGATEB::QAB(F)
      • Refutation
        • S(d);
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • R(b);N_GUARD,P_PINS(C)::QAR1(F),XR(b)
        • B(e);OGATE::QAR(F)
        • S(d);OGATE::QAB1(F),XR(b)
      • Refutation
        • P(c);
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • R(b);N_GUARD,P_PINS(C)::QAR1(F),XR(b)
        • S(d);OGATE::QAB1(F),XR(b)
        • P(c);OGATEB::QAB(F)
      • Refutation
        • B(e);
  • Actual
    • S(E);
    • Threat
      • QAR1(F)
    • Vars
      • R(b);N_GUARD,P_PINS(C)::QAR1(F),XR(b)
      • B(e);OGATE::QAR(F)
      • S(d);OGATE::QAB1(F),XR(b)
      • P(c);OGATEB::QAB(F)
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