MESON Chess Problem Database

Problem Display
PID: 110539 (8/8/8/8/2Q5/K7/1p6/1k6 w - - 0 1)

Kardos, Tivadar

Basha'ar, 1950

8/8/8/8/2Q5/K7/1p6/1k6

#2

2 + 2

6490 yacpdb 2009
3713 Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka1
      • 2.Qa2#
  • Tries
    • 1.Qe2?
      • threat
        • 2.Qd1#
        • 2.Qxb2#
      • 1...Ka1
        • 2.Qxb2#
      • 1...Kc1!
    • 1.Qb3?
      • threat
        • 2.Qd1#
        • 2.Qxb2#
      • 1...Ka1
        • 2.Qa2#
        • 2.Qxb2#
      • 1...Kc1!
    • 1.Qc2+?
      • 1...Ka1
        • 2.Qxb2#
      • 1...Kxc2!
  • Keys
    • 1.Qc3!
      • 1...Ka1
        • 2.Qxb2#

Anticipated by 206714(1925)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAB1(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);P_PINP(b)
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::QAB1(B),XP(b)
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