MESON Chess Problem Database

Problem Display
PID: 35521 (8/8/8/8/3K4/6B1/R1B2NkP/8 w - - 0 1)

Zheltonozhko, Vladimir Ivanovich

Sp. HM., Smena, 1994

8/8/8/8/3K4/6B1/R1B2NkP/8

#2

6 + 1

3705 Album Russia (1992-1994) 2000
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Be4#
  • Tries
    • 1.Bd3?
      • 1...Kf3
        • 2.Be4#
      • 1...Kg1!
    • 1.Be4+?
      • 1...Kg1
        • 2.Ra1#
      • 1...Kf1!
  • Keys
    • 1.Sh3!
      • 1...Kf1
        • 2.Bd3#
      • 1...Kh1
        • 2.Be4#
      • 1...Kf3
        • 2.Bd1#
      • 1...Kxh3
        • 2.Bf5#

Anticipated by 90264(1940), 169934(1945), 18264(1954), 171998(1970)

This anticipates 79150(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(B)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • K(a);S_FLIGHT,XS(C)::B(B)
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