MESON Chess Problem Database

Problem Display
PID: 71669 (8/8/5p2/5R2/4k3/2K5/8/5R2 w - - 0 1)

Gugel, Lev Nikolaevich

Shif, Vladimir Iosifovich

Die Schwalbe, 1930

8/8/5p2/5R2/4k3/2K5/8/5R2

#2

3 + 2

3713 Snap 2007
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Re1#
  • Tries
    • 1.Ra1?
      • 1...Ke3
        • 2.Re1#
      • 1...Kxf5!
    • 1.Rb1?
      • 1...Ke3
        • 2.Re1#
      • 1...Kxf5!
    • 1.Rc1?
      • 1...Ke3
        • 2.Re1#
      • 1...Kxf5!
    • 1.Rd1?
      • 1...Ke3
        • 2.Re1#
      • 1...Kxf5!
    • 1.Rg1?
      • 1...Ke3
        • 2.Re1#
      • 1...Kxf5!
    • 1.Rh1?
      • 1...Ke3
        • 2.Re1#
      • 1...Kxf5!
  • Keys
    • 1.Kd2!
      • 1...Kd4
        • 2.R1f4#

Anticipated by 202254(1923), 22387(1926)

FEATURES

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