MESON Chess Problem Database

Problem Display
PID: 25833 (4b3/8/8/8/8/k3K3/8/1R5Q w - - 0 1)

Liskovets, V

64 Shakhmatnoe obozrenie, 1981

4b3/8/8/8/8/k3K3/8/1R5Q

#2

3 + 2

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qa8#
    • 1...Bh5
      • 2.Qa8#
    • 1...Bg6
      • 2.Qa8#
    • 1...Bf7
      • 2.Qa8#
  • Tries
    • 1.Qd5?
      • threat
        • 2.Qb3#
      • 1...Ka4
        • 2.Qa2#
        • 2.Qa8#
      • 1...Bf7
        • 2.Qa8#
        • 2.Qa5#
      • 1...Ba4!
    • 1.Qb7?
      • threat
        • 2.Ra1#
        • 2.Qb3#
      • 1...Ka2
        • 2.Qb2#
        • 2.Qb3#
      • 1...Ka4
        • 2.Ra1#
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qb4#
        • 2.Qa7#
      • 1...Ba4
        • 2.Ra1#
        • 2.Qb2#
      • 1...Bf7
        • 2.Qa6#
        • 2.Qa8#
        • 2.Qa7#
      • 1...Bb5!
    • 1.Qc1+?
      • 1...Ka2
        • 2.Qb2#
      • 1...Ka4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qa1#
      • 1...Ka2
        • 2.Qa1#
        • 2.Qb2#
      • 1...Ka4
        • 2.Qa1#
      • 1...Bf7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(a);P-FLIGHT::QAR(B)
    • B(b);N_GUARD::QAR(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Refutation
        • B(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • B(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR2(B)
    • Vars
      • K(a);P-FLIGHT::QAR(B)
      • B(b);OGATE::QAR(B)
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