MESON Chess Problem Database

Problem Display
PID: 213656 (3Q4/8/p7/1k1K4/p7/pp6/8/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1973

3Q4/8/p7/1k1K4/p7/pp6/8/8

#2

2 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qc5#
      • 1...Ka5
        • 2.Qc5#
      • 1...a5
        • 2.Qb7#
      • 1...Kb6!
    • 1.Qd6?
      • threat
        • 2.Qc5#
      • 1...Ka5
        • 2.Qc5#
      • 1...a5!
    • 1.Qc8?
      • threat
        • 2.Qc5#
      • 1...Kb4
        • 2.Qc5#
      • 1...Ka5
        • 2.Qc5#
      • 1...a5
        • 2.Qb7#
      • 1...Kb6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qc5#
      • 1...Kb4
        • 2.Qc5#
      • 1...a5
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(d);P-FLIGHT::QAR2(B)
        • P(e);SBLOCK::QAR2(B)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(d);P-FLIGHT::QAR2(B)
      • Refutation
        • P(e);
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(d);P-FLIGHT::QAB1(B)
        • K(d);P-FLIGHT::QAR2(B)
        • P(e);SBLOCK::QAR2(B)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(d);P-FLIGHT::QAB1(B)
      • P(e);SBLOCK::QAR2(B)
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