MESON Chess Problem Database

Problem Display
PID: 77513 (8/8/8/1p6/1N2K3/Q7/1p6/1k6 w - - 0 1)

Cyrulik, Stepan Pavlovich

Problemist Pribuzhya, 1993

8/8/8/1p6/1N2K3/Q7/1p6/1k6

#2

3 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sa2?
      • 1...Ka1
        • 2.Sc3#
      • 1...Kc2
        • 2.Qd3#
      • 1...b4!
    • 1.Qd3+?
      • 1...Kc1
        • 2.Sa2#
        • 2.Qc2#
      • 1...Ka1!
    • 1.Qg3?
      • threat
        • 2.Qe1#
        • 2.Qg1#
      • 1...Kc1
        • 2.Qe1#
      • 1...Ka1!
    • 1.Qa4?
      • threat
        • 2.Qd1#
      • 1...Kc1
        • 2.Qc2#
      • 1...bxa4!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qd1#
      • 1...Ka1
        • 2.Qa2#
      • 1...Kc1
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT::QAR(A)+S(B)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);P_PINP(b)
    • Threat
      • QAR2(A)
    • Vars
      • K(a);N_SPINP(b),P-FLIGHT::QAR1(A)
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Developed and maintained by Brian Stephenson.
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