MESON Chess Problem Database

Problem Display
PID: 103957 (Q7/4p3/8/8/4K3/4p3/3Pk3/2R5 w - - 0 1)

Shakhnazaryan, Albert Serapionovic

Kudesnik, 1991

Q7/4p3/8/8/4K3/4p3/3Pk3/2R5

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qxe3#
      • 1...Kxd2
        • 2.Qb2#
        • 2.Qxe3#
      • 1...exd2
        • 2.Qe3#
        • 2.Qf3#
      • 1...Kf2!
    • 1.Qa7?
      • threat
        • 2.Qxe3#
      • 1...Kxd2
        • 2.Qxe3#
      • 1...exd2
        • 2.Qe3#
      • 1...Kf2!
    • 1.Qb8?
      • threat
        • 2.Qh2#
      • 1...Kxd2
        • 2.Qb2#
      • 1...Kf2
        • 2.Qh2#
      • 1...e5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qh2#
      • 1...Kxd2
        • 2.Qb2#
      • 1...Kf2
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR1(D),XP(b)
      • Vars
        • K(a);P-FLIGHT,XP(B)::QAB1(D),XP(b)
        • P(b);XP(B)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(D)
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • P(c);
  • Actual
    • Q(D);
    • Threat
      • QAR(D)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(D)
      • K(a);P-FLIGHT::QAR2(D)
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