MESON Chess Problem Database

Problem Display
PID: 99607 (1B6/8/pp1N4/k7/8/1PK5/8/8 w - - 0 1)

Dawson, Thomas Rayner

Magyar Sakkvilag, 1929

1B6/8/pp1N4/k7/8/1PK5/8/8

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Bc7#
  • Tries
    • 1.Se4?
      • 1...b5
        • 2.Bc7#
      • 1...Kb5!
    • 1.Sf5?
      • 1...b5
        • 2.Bc7#
      • 1...Kb5!
    • 1.Sf7?
      • 1...b5
        • 2.Bc7#
      • 1...Kb5!
    • 1.Sc8?
      • 1...b5
        • 2.Bc7#
      • 1...Kb5!
    • 1.Se8?
      • 1...b5
        • 2.Bc7#
      • 1...Kb5!
  • Keys
    • 1.Ba7!
      • 1...b5
        • 2.Sb7#

Anticipated by 56747(1924)

This anticipates 167318(1995), 171354(1995)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::B(D)
  • Tries
    • Try
      • S(C);
      • Vars
        • P(c);OGATEB,SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);OGATEB,SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);OGATEB,SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);OGATEB,SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • P(c);OGATEB,SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(D);
    • Vars
      • P(c);SBLOCK::S(C)
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