MESON Chess Problem Database

Problem Display
PID: 86625 (4R3/1pkp4/5pp1/3P4/N2R4/8/1K2b3/1Q6 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Canadian Chess Chat, 1981

4R3/1pkp4/5pp1/3P4/N2R4/8/1K2b3/1Q6

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Bc4!
    • 1.Qc1+?
      • 1...Kd6
        • 2.Qf4#
        • 2.Qc5#
      • 1...Bc4!
    • 1.Qh1?
      • threat
        • 2.d6#
      • 1...Kd6
        • 2.Qh2#
      • 1...d6
        • 2.Qh7#
      • 1...Bf3!
  • Keys
    • 1.Qe4!
      • threat
        • 2.d6#
      • 1...Kd6
        • 2.Qf4#
      • 1...d6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(A)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(A);CHECK
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(A);
      • Threat
        • P(E)
      • Vars
        • K(e);S_FLIGHT::QAB(A)
        • P(f);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • B(a);
  • Actual
    • Q(A);
    • Threat
      • P(E)
    • Vars
      • K(e);S_FLIGHT::QAB(A)
      • P(f);OGATEB::QAR2(A)
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