MESON Chess Problem Database

Problem Display
PID: 186848 (3N4/5Bk1/6P1/8/3N2K1/8/7B/8 w - - 0 1)

Grupen, Claus

Problem Observer, 2018

3N4/5Bk1/6P1/8/3N2K1/8/7B/8

#2

6 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Sf5#
    • 1...Kh8
      • 2.Be5#
  • Tries
    • 1.Kg5?
      • 1...Kh8
        • 2.Be5#
      • 1...Kf8!
    • 1.Sf5+?
      • 1...Kf8
        • 2.Se6#
        • 2.Bd6#
        • 2.g7#
      • 1...Kh8
        • 2.Be5#
      • 1...Kf6!
    • 1.S4c6?
      • 1...Kf6
        • 2.Be5#
      • 1...Kf8
        • 2.Se6#
      • 1...Kh8
        • 2.Be5#
      • 1...Kh6!
    • 1.S4e6+?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh8
        • 2.Be5#
      • 1...Kf6!
    • 1.S8e6+?
      • 1...Kh6
        • 2.Sf5#
        • 2.Bf4#
      • 1...Kh8
        • 2.Be5#
      • 1...Kf6!
    • 1.Be5+?
      • 1...Kh6
        • 2.Sf5#
      • 1...Kf8!
    • 1.Bd6?
      • 1...Kh6
        • 2.Sf5#
        • 2.Bf8#
      • 1...Kh8
        • 2.Be5#
      • 1...Kf6!
  • Keys
    • 1.S8c6!
      • 1...Kf6
        • 2.Be5#
      • 1...Kh6
        • 2.Sf5#
      • 1...Kf8
        • 2.Se6#
      • 1...Kh8
        • 2.Be5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(B)
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT::S(B)
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