MESON Chess Problem Database

Problem Display
PID: 222223 (8/1B1R4/8/Pk6/1P6/P7/8/3K4 w - - 0 1)

Hannelius, Jan Ingvar

Suomen Shakki, 1982

8/1B1R4/8/Pk6/1P6/P7/8/3K4

#2

6 + 1

15148 Sadier Collection 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kc2?
      • 1...Kc4
        • 2.Ba6#
      • 1...Ka4!
    • 1.Bd5?
      • 1...Ka6
        • 2.Bc4#
      • 1...Ka4!
  • Keys
    • 1.Rd3!
      • 1...Ka4
        • 2.Bc6#
      • 1...Kc4
        • 2.Ba6#

Anticipated by 222445(1884), 181779(1910), 201343(1922), 205509(1925), 176177(1962), 230406(1973), 136399(1981/5)

This anticipates 232139(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);S_FLIGHT::B(E)
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