MESON Chess Problem Database

Problem Display
PID: 213901 (8/8/B2B1p2/1N1k1N2/7Q/8/K5P1/8 w - - 0 1)

Decker, Adolfph L

Deutsche Schachzeitung, 1892

8/8/B2B1p2/1N1k1N2/7Q/8/K5P1/8

#2

7 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1?
      • 1...Kc4
        • 2.Sc3#
        • 2.Sc7#
        • 2.Qe4#
      • 1...Kc6!
    • 1.Qxf6?
      • 1...Kc4
        • 2.Sc3#
        • 2.Sc7#
        • 2.Qd4#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6!
  • Keys
    • 1.Qh7!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);XP(b)
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT::S(D)
      • K(a);S_FLIGHT::QAB1(C)
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