MESON Chess Problem Database

Problem Display
PID: 59571 (q7/8/1prp4/B2R1PP1/1r2RK2/1Pk2P1Q/np4P1/1n1B4 w - - 0 1)

Maleika, Gerhard

The Problemist, 2005

q7/8/1prp4/B2R1PP1/1r2RK2/1Pk2P1Q/np4P1/1n1B4

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Qh8#
    • 1...Qh8
      • 2.Qxh8#
    • 1...Rc4
      • 2.Rxc4#
    • 1...Sc1
      • 2.Bxb4#
  • Tries
    • 1.Kg3?
      • threat
        • 2.Re3#
      • 1...Qa6
        • 2.Qh8#
      • 1...Sc1
        • 2.Bxb4#
      • 1...Qe8!
    • 1.Kg4?
      • threat
        • 2.f4#
      • 1...Qa6
        • 2.Qh8#
      • 1...Qh8
        • 2.Qxh8#
      • 1...Sc1
        • 2.Bxb4#
      • 1...Sd2!
  • Keys
    • 1.Ke3!
      • threat
        • 2.Rd3#
      • 1...Qa6
        • 2.Qh8#
      • 1...Sc1
        • 2.Bxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(i);N_GUARD::QAB(E)
    • Q(i);N_GUARD::QAB(E),XQ(i)
    • R(g);N_GUARD::R1(F),XR(g)
    • S(b);N_GUARD::B(H),XR(e)
  • Tries
    • Try
      • K(G);N_SPINR(F),S_FLIGHT
      • Threat
        • R(F)
      • Vars
        • Q(i);N_GUARD::QAB(E)
        • S(b);N_GUARD::B(H),XR(e)
      • Refutation
        • Q(i);
    • Try
      • K(G);P-FLIGHT
      • Threat
        • QAR(E)+P(D)
      • Vars
        • Q(i);N_GUARD::QAB(E)
        • Q(i);N_GUARD::QAB(E),XQ(i)
        • S(b);N_GUARD::B(H),XR(e)
      • Refutation
        • S(a);
  • Actual
    • K(G);N_SPINR(F),S_FLIGHT
    • Threat
      • R1(I)
    • Vars
      • Q(i);N_GUARD::QAB(E)
      • S(b);N_GUARD::B(H),XR(e)
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