MESON Chess Problem Database

Problem Display
PID: 232186 (B7/8/8/1K6/3p2R1/4k3/7R/8 w - - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1970

B7/8/8/1K6/3p2R1/4k3/7R/8

#2

4 + 2

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Rg3#
  • Tries
    • 1.Kb4?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Kc5?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Bd5?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Bc6?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Bb7?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Ra2?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Rb2?
      • 1...Kd3
        • 2.Rg3#
      • 1...d3!
    • 1.Rhg2?
      • 1...Kd3
        • 2.R4g3#
      • 1...d3!
    • 1.Rgh4?
      • 1...Kd3
        • 2.R4h3#
      • 1...d3!
  • Keys
    • 1.Bh1!
      • 1...Kd3
        • 2.Rg3#
      • 1...d3
        • 2.Re4#

Anticipated by 198885(1921)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(b);
  • Actual
    • B(D);
    • Vars
      • K(a);P-FLIGHT::R(B)
      • P(b);SBLOCK::R1(B)
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