MESON Chess Problem Database

Problem Display
PID: 80434 (3B4/4pN2/7Q/5k2/1N6/7K/8/8 w - - 0 1)

Amirov, Talip Khasanovich

Vecherni Novosti, 1961

3B4/4pN2/7Q/5k2/1N6/7K/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Sd6#
  • Tries
    • 1.Sd3?
      • 1...e6
        • 2.Sd6#
        • 2.Qh7#
      • 1...e5
        • 2.Sd6#
      • 1...Ke4!
    • 1.Sd5?
      • 1...e6
        • 2.Qh7#
      • 1...e5
        • 2.Sd6#
      • 1...Ke4!
    • 1.Sc6?
      • 1...e6
        • 2.Sd6#
      • 1...e5
        • 2.Sd6#
      • 1...Ke4!
    • 1.Bc7?
      • 1...Ke4
        • 2.Qf4#
      • 1...e5
        • 2.Sd6#
      • 1...e6!
  • Keys
    • 1.Kg3!
      • 1...Ke4
        • 2.Qf4#
      • 1...e5
        • 2.Sd6#
      • 1...e6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD,SBLOCK::S(D)
  • Tries
    • Try
      • S(B);
      • Vars
        • P(b);N_GUARD::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(b);SBLOCK::QAB(C)
        • P(b);N_GUARD,SBLOCK::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(b);N_GUARD::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • P(b);N_GUARD,SBLOCK::S(D)
      • Refutation
        • P(b);
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAR1(C)
      • P(b);N_GUARD,SBLOCK::S(D)
      • P(b);SBLOCK::QAB(C)
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