MESON Chess Problem Database

Problem Display
PID: 38982 (K7/8/2k1B3/1p6/4R3/4Q3/8/4B3 w - - 0 1)

Shapovalov, Evgeny Ivanovich

Shakhmaty (Riga), 1972

(First published on Fri Sep 1 1972)

K7/8/2k1B3/1p6/4R3/4Q3/8/4B3

#2

5 + 2

2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Ka7?
      • threat
        • 2.Qb6#
      • 1...Kc7
        • 2.Qb6#
      • 1...Kd6!
    • 1.Bh4?
      • 1...Kd6
        • 2.Qb6#
      • 1...Kc7
        • 2.Qc5#
      • 1...b4!
    • 1.Rc4+?
      • 1...Kd6
        • 2.Bb4#
      • 1...bxc4!
    • 1.Re5?
      • threat
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kc7!
    • 1.Qc1+?
      • 1...Kd6
        • 2.Bb4#
      • 1...Kb6!
    • 1.Qf4?
      • 1...Kc5
        • 2.Qc7#
      • 1...Kb6
        • 2.Qd6#
      • 1...b4!
    • 1.Qg3?
      • 1...Kc5
        • 2.Qc7#
      • 1...Kb6
        • 2.Qd6#
      • 1...b4!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qc5#
        • 2.Qb6#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kc7
        • 2.Qb6#

Anticipated by 125339(1972)

This anticipates 12379(1978), 154638(1982), 256449(1983), 85323(1988), 241069(1989), 108589(1998), 262342(2014)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • R(C);CHECK
      • Vars
        • K(b);P-FLIGHT::B(A)
      • Refutation
        • P(a);XR(C)
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::B(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);
  • Actual
    • B(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAB1(B)
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