MESON Chess Problem Database

Problem Display
PID: 76743 (7K/4R3/5N2/4BPk1/4P3/8/8/8 w - - 0 1)

Lunn, Arnold

The Tablet, 1944

(First published on Sat Sep 9 1944)

7K/4R3/5N2/4BPk1/4P3/8/8/8

#2

6 + 1

5454 Near Snap 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Bf4#
  • Tries
    • 1.Kg8?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Re6?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Ra7?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Rb7?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Rc7?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Rd7?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Rf7?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
    • 1.Rg7+?
      • 1...Kh6
        • 2.Bf4#
        • 2.Rg6#
      • 1...Kh4!
    • 1.Re8?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kh4!
  • Keys
    • 1.Bg3!
      • 1...Kxf6
        • 2.Bh4#
      • 1...Kh6
        • 2.Bf4#

Anticipated by 183159(1907)

This anticipates 77555(1952), 103626(1996)

FEATURES

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