MESON Chess Problem Database

Problem Display
PID: 203227 (8/8/N7/8/1p6/1R6/n1k5/1R2K3 w - - 0 1)

Kovacs, Florian Janos

Schweizerische Schachzeitung, 1924

8/8/N7/8/1p6/1R6/n1k5/1R2K3

#2

4 + 3

3713 Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Sxb4#
      • 2.R1b2#
    • 1...Sc3
      • 2.Sxb4#
  • Tries
    • 1.Sc7?
      • 1...Sc1
        • 2.R1b2#
      • 1...Sc3!
    • 1.Sb8?
      • 1...Sc1
        • 2.R1b2#
      • 1...Sc3!
  • Keys
    • 1.Sc5!
      • 1...Sc1
        • 2.R1b2#
      • 1...Sc3
        • 2.R3b2#

This anticipates 178749(1956)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(D),XP(c)
  • Tries
    • Try
      • S(D);
      • Vars
        • S(a);SBLOCK::R1(A)
      • Refutation
        • S(a);
    • Try
      • S(D);
      • Vars
        • S(a);SBLOCK::R1(A)
      • Refutation
        • S(a);
  • Actual
    • S(D);
    • Vars
      • S(a);SBLOCK::R1(A)
      • S(a);SBLOCK::R1(C)
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