MESON Chess Problem Database

Problem Display
PID: 222597 (8/8/6p1/3pPkN1/3pR1Np/7K/B5n1/1Q4R1 w - - 0 1)

Lyons, William Henry

New Orleans Times-Democrat, 1884

8/8/6p1/3pPkN1/3pR1Np/7K/B5n1/1Q4R1

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Sh6#
    • 1...Se3
      • 2.Sh6#
  • Tries
    • 1.Qf1+?
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Kxg5!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sh6#
      • 1...Sf4+
        • 2.Qxf4#
      • 1...dxe4
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(a);::S(F)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(a);CHECK,N_GUARD,P_SPINS(a)::QAR1(A),XS(a)
      • Refutation
        • K(e);P-FLIGHT,XS(H)
  • Actual
    • Q(A);
    • Threat
      • S(F)
    • Vars
      • S(a);CHECK,N_GUARD::QAR1(A),XS(a)
      • P(d);OGATE,XR(E)::B(C)
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