MESON Chess Problem Database

Problem Display
PID: 28341 (1B3n1b/Q7/3N2p1/4kr2/2P1Np2/1P3p2/5K2/8 w - - 0 1)

Belik, Nikolai Ivanovich

Sovietsky Shakhter, 1961

1B3n1b/Q7/3N2p1/4kr2/2P1Np2/1P3p2/5K2/8

#2

7 + 7

3242 BCPS Rapid Solving (Cheltenham) 2001

SOLUTION

  • SOUND
  • Tries
    • 1.Sb7+?
      • 1...Ke6
        • 2.Sd8#
      • 1...Kxe4!
    • 1.Sf7+?
      • 1...Ke6
        • 2.Sd8#
      • 1...Kxe4!
    • 1.Sc8+?
      • 1...Ke6
        • 2.Qe7#
      • 1...Kxe4!
    • 1.Qa5+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Ke6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qa1#
      • 1...Kd4
        • 2.Sb5#
      • 1...Kf6
        • 2.Sde4#
      • 1...Se6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(F)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAB(F)
    • Vars
      • K(c);S_FLIGHT::S(E)
      • S(f);N_GUARD,SBLOCK::S(D)
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