MESON Chess Problem Database

Problem Display
PID: 162527 (3Kn3/1p6/1B6/1k1pP3/1N6/1R1p4/P3r3/1B3Q2 w - - 0 1)

Kratz, Jurgen

Die Schwalbe, 2015

3Kn3/1p6/1B6/1k1pP3/1N6/1R1p4/P3r3/1B3Q2

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Bxd3#
  • Tries
    • 1.Sc2+?
      • 1...Ka4
        • 2.Rb4#
      • 1...Kc4
        • 2.Sa3#
      • 1...Kc6
        • 2.Sd4#
      • 1...Ka6!
    • 1.Sxd3+?
      • 1...Ka4
        • 2.Sc5#
      • 1...Kc4
        • 2.Sb2#
      • 1...Ka6
        • 2.Sc5#
      • 1...Kc6!
    • 1.Sxd5+?
      • 1...Ka4
        • 2.Sc3#
      • 1...Ka6
        • 2.Bxd3#
      • 1...Kc6
        • 2.Se7#
      • 1...Kc4!
  • Keys
    • 1.Sa6+!
      • 1...Ka4
        • 2.Sc5#
      • 1...Kc4
        • 2.Bxd3#
      • 1...Kxa6
        • 2.Bxd3#
      • 1...Kc6
        • 2.Sb8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::B(A),XP(b)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);S_FLIGHT::R1(D)
        • K(c);S_FLIGHT::S(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(E);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT::S(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(E);CHECK,XP(d)
      • Vars
        • K(c);S_FLIGHT::S(E)
        • K(c);S_FLIGHT::B(A),XP(b)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);CHECK
    • Vars
      • K(c);S_FLIGHT::S(E)
      • K(c);S_FLIGHT::B(A),XP(b)
      • K(c);S_FLIGHT,XS(E)::B(A),XP(b)
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