MESON Chess Problem Database

Problem Display
PID: 132864 (8/8/K7/3k4/3p2B1/2pN3Q/8/8 w - - 0 1)

Amirov, Talip Khasanovich

Problemas, 1972

8/8/K7/3k4/3p2B1/2pN3Q/8/8

#2

4 + 3

5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Be6#
    • 1...Ke4
      • 2.Qf3#
  • Tries
    • 1.Bd7?
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6!
    • 1.Qf3+?
      • 1...Kc4
        • 2.Be6#
      • 1...Kd6!
    • 1.Qh5+?
      • 1...Kc4
        • 2.Qb5#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Ke4!
    • 1.Qh7?
      • 1...Kc4
        • 2.Be6#
      • 1...Kc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...c2!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Bb7#
      • 1...Kc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#

This anticipates 225182(2004)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::B(C)
    • K(c);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAB1(B)
        • K(c);OGATE,S_FLIGHT::QAR1(B)
        • K(c);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);S_FLIGHT::B(C)
        • K(c);S_FLIGHT::QAB1(B)
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • P(a);
  • Actual
    • B(C);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);S_FLIGHT::B(C)
      • K(c);S_FLIGHT::QAB1(B)
      • K(c);P-FLIGHT::QAR1(B)
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