MESON Chess Problem Database

Problem Display
PID: 150335 (2B5/8/2p2p2/2P2K2/2kP4/2P5/1R1P4/8 w - - 0 1)

Dawson, Thomas Rayner

Pittsburgh Sun, 1924

(First published on Sat Apr 5 1924)

2B5/8/2p2p2/2P2K2/2kP4/2P5/1R1P4/8

#2

7 + 3

15256 TRD Scrapbook 2014
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Ba6#
    • 1...Kd5
      • 2.Be6#
  • Tries
    • 1.Bb7?
      • 1...Kd3
        • 2.Ba6#
      • 1...Kd5!
    • 1.Bd7?
      • 1...Kd5
        • 2.Be6#
      • 1...Kd3!
    • 1.Rb1?
      • 1...Kd5
        • 2.Be6#
      • 1...Kd3!
    • 1.Rb4+?
      • 1...Kd5
        • 2.Be6#
      • 1...Kd3!
    • 1.Rb6?
      • 1...Kd5
        • 2.Be6#
      • 1...Kd3!
    • 1.Rb7?
      • 1...Kd5
        • 2.Be6#
      • 1...Kd3!
    • 1.Rb8?
      • 1...Kd5
        • 2.Be6#
      • 1...Kd3!
  • Keys
    • 1.Ra2!
      • 1...Kb3
        • 2.Be6#
      • 1...Kd3
        • 2.Ba6#
      • 1...Kb5
        • 2.Ba6#
      • 1...Kd5
        • 2.Be6#

Anticipated by 48622(0000), 2847(1890)

This anticipates 163326(1926), 209843(1978), 215938(2019)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(G)
  • Tries
    • Try
      • B(G);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::B(G)
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