MESON Chess Problem Database

Problem Display
PID: 216244 (3K4/8/7P/5Pkp/7p/7Q/5P2/1B6 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Wiener Salonblatt, 1882

3K4/8/7P/5Pkp/7p/7Q/5P2/1B6

#2

6 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qg2+?
      • 1...Kf6
        • 2.Qg7#
      • 1...Kxh6
        • 2.Qg6#
      • 1...Kf4!
    • 1.Qe3+?
      • 1...Kf6
        • 2.Qe7#
      • 1...Kg4!
    • 1.Qg3+?
      • 1...Kf6
        • 2.Qg7#
      • 1...Kxh6
        • 2.Qg6#
      • 1...hxg3!
  • Keys
    • 1.f6!
      • 1...Kf4
        • 2.Qf5#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kxh6
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(C)
        • K(b);OGATE,S_FLIGHT,XP(E)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(C)
        • K(b);OGATE,S_FLIGHT,XP(E)::QAR1(C)
      • Refutation
        • P(a);XQ(C)
  • Actual
    • P(D);
    • Vars
      • K(b);S_FLIGHT::QAR1(C)
      • K(b);S_FLIGHT,XP(D)::QAR1(C)
      • K(b);S_FLIGHT,XP(E)::QAB(C)
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