MESON Chess Problem Database

Problem Display
PID: 206648 (B2K4/1rBn4/Rnk5/8/2PP4/8/8/8 w - - 0 1)

Sonnenfeld, Pal

Nepszava, 1925

B2K4/1rBn4/Rnk5/8/2PP4/8/8/8

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Rxb6#
      • 2.d5#
    • 1...Se5
      • 2.Rxb6#
    • 1...Sf6
      • 2.Rxb6#
    • 1...Sb8
      • 2.Rxb6#
    • 1...Sf8
      • 2.Rxb6#
  • Keys
    • 1.Ra5!
      • 1...Sxc4
        • 2.d5#
      • 1...Sxa8
        • 2.d5#
      • 1...Sf6
        • 2.Rc5#
      • 1...Sa4
        • 2.d5#
      • 1...Sd5
        • 2.cxd5#
      • 1...Sc8
        • 2.d5#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Se5
        • 2.Rc5#
      • 1...Sb8
        • 2.Rc5#
      • 1...Sf8
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 4
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::R1(C),XS(a)
  • Actual
    • R(C);N_PINS(a)
    • Vars
      • S(a);N_GUARD,XP(A)::P(B)
      • S(a);N_GUARD,N_SPINR(c),XB(E)::P(B)
      • S(d);N_GUARD::R1(C)
      • S(a);N_GUARD::P(B)
      • S(a);OGATE::P(A),XS(a)
      • S(d);N_GUARD::R1(C),XS(d)
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