MESON Chess Problem Database

Problem Display
PID: 241722 (8/8/6R1/7k/6R1/5nP1/8/7K w - - 0 1)

Segers, Marcel

Magyar Sakkvilag, 1935

8/8/6R1/7k/6R1/5nP1/8/7K

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.R4g5#
    • 1...Sg1
      • 2.R4g5#
    • 1...Sd2
      • 2.R4g5#
    • 1...Sh2
      • 2.R4g5#
    • 1...Sd4
      • 2.R4g5#
    • 1...Sh4
      • 2.R4g5#
    • 1...Se5
      • 2.R4g5#
    • 1...Sg5
      • 2.R4xg5#
  • Tries
    • 1.Rg7?
      • 1...Sg5
        • 2.Rh4#
      • 1...Se1
        • 2.Rh4#
      • 1...Sg1
        • 2.Rh4#
      • 1...Sd2
        • 2.Rh4#
      • 1...Sh2
        • 2.Rh4#
      • 1...Sd4
        • 2.Rh4#
      • 1...Sh4
        • 2.Rxh4#
      • 1...Se5
        • 2.Rh4#
      • 1...Kh6!
  • Keys
    • 1.Rg8!
      • 1...Kh6
        • 2.Rh8#
      • 1...Sg5
        • 2.Rh4#
      • 1...Se1
        • 2.Rh4#
      • 1...Sg1
        • 2.Rh4#
      • 1...Sd2
        • 2.Rh4#
      • 1...Sh2
        • 2.Rh4#
      • 1...Sd4
        • 2.Rh4#
      • 1...Sh4
        • 2.Rxh4#
      • 1...Se5
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 8
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::R1(C)
    • S(a);N_GUARD::R1(C),XS(a)
  • Tries
    • Try
      • R(D);
      • Vars
        • S(a);N_GUARD::R1(C)
        • S(a);N_GUARD::R1(C),XS(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(b);P-FLIGHT::R(D)
      • S(a);N_GUARD::R1(C)
      • S(a);N_GUARD::R1(C),XS(a)
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