MESON Chess Problem Database

Problem Display
PID: 46410 (8/8/8/8/1p6/2p4Q/2k5/R3K3 w Q - 0 1)

Velikhanov, Kenan

StrateGems, 2003

8/8/8/8/1p6/2p4Q/2k5/R3K3

#2

3 + 3

3713 Snap 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Qg2+?
      • 1...Kb3
        • 2.Qa2#
      • 1...Kd3!
    • 1.Qf5+?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb3!
    • 1.Qh2+?
      • 1...Kb3
        • 2.Qa2#
      • 1...Kd3!
    • 1.Qh7+?
      • 1...Kb2
        • 2.Qb1#
      • 1...Kb3!
  • Keys
    • 1.Qe6!
      • 1...Kb2
        • 2.Qa2#
      • 1...Kd3
        • 2.0-0-0#
      • 1...b3
        • 2.Qe2#

Anticipated by 2844(1889), 79328(1960)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::0-0-0
      • P(c);SBLOCK::QAR2(C)
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