MESON Chess Problem Database

Problem Display
PID: 45710 (2B5/1K1Q4/8/8/3Bk3/8/4p3/5R2 w - - 0 1)

Lobusov, Andrey Jakovlevic

Bulletin, 1975

2B5/1K1Q4/8/8/3Bk3/8/4p3/5R2

#2

5 + 2

22 Deutsche Schachzeitung 1979
3295 Einfuhrung in die Welt des Schachproblem 1984
3296 Shakhmatny zadachi miniaturi 1987
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Re1?
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf4
        • 2.Qg4#
      • 1...Kd3!
    • 1.Rf4+?
      • 1...Kxf4
        • 2.Qg4#
      • 1...Kd3!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qf5#
      • 1...Kf3
        • 2.Qg4#
      • 1...Kf4
        • 2.Qf5#
      • 1...Ke5
        • 2.Qd4#

Anticipated by 12061(1974)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(D)
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(D)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XR(A)::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAB1(D)
    • Vars
      • K(b);S_FLIGHT::QAB1(D)
      • K(b);P-FLIGHT::QAR1(D)
      • K(b);P-FLIGHT::QAB1(D)
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