MESON Chess Problem Database

Problem Display
PID: 223439 (3B4/4PPn1/3N3b/4prk1/5pP1/5P1K/8/8 w - - 0 1)

Anonymous

Ottawa Citizen, 1886

3B4/4PPn1/3N3b/4prk1/5pP1/5P1K/8/8

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.e8Q+?
      • 1...Kg6
        • 2.f8S#
      • 1...Rf6!
    • 1.e8B+?
      • 1...Kg6
        • 2.f8S#
      • 1...Rf6!
  • Keys
    • 1.f8S!
      • threat
        • 2.Se4#
      • 1...Kf6
        • 2.e8Q#
        • 2.e8S#
        • 2.e8B#
        • 2.e8R#
      • 1...Rxf8
        • 2.exf8S#
      • 1...e4
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • K(d);P-FLIGHT::P=S
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • P(E);CHECK
      • Vars
        • K(d);P-FLIGHT::P=S
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • P(F);
    • Threat
      • S(D)
    • Vars
      • R(c);OGATE,XS(F)::PXR(c)=S
      • P(b);::S(D),XP(b)
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