MESON Chess Problem Database

Problem Display
PID: 225528 (1N6/8/4Q3/4p2P/4k3/2P3P1/7P/3K4 w - - 0 1)

Hudak, Stanislav

Praca, 2001

1N6/8/4Q3/4p2P/4k3/2P3P1/7P/3K4

#2

7 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5!
    • 1.Qxe5+?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kxe5!
  • Keys
    • 1.Qa6!
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK,N_PINP(b)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
        • K(a);OGATE,S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
  • Actual
    • Q(F);N_PINP(b)
    • Vars
      • K(a);P-FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::QAB1(F)
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