MESON Chess Problem Database

Problem Display
PID: 119933 (2Q5/8/5pK1/3kpN2/5p2/8/1qPn1N2/8 w - - 0 1)

Pradignat, Emile Leonard

L'Eco degli Scacchi, 1901

2Q5/8/5pK1/3kpN2/5p2/8/1qPn1N2/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.c4#
    • 1...Sf1
      • 2.c4#
    • 1...Sb3
      • 2.c4#
    • 1...Sf3
      • 2.c4#
    • 1...Se4
      • 2.c4#
  • Tries
    • 1.Qc5+?
      • 1...Ke6
        • 2.Qd6#
        • 2.Qc6#
      • 1...Kxc5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sxf6#
      • 1...Kxe4
        • 2.Qc6#
      • 1...Sxe4
        • 2.c4#
      • 1...Qb6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(b);N_GUARD::P(A)
  • Tries
    • Try
      • Q(E);CHECK
      • Refutation
        • K(d);P-FLIGHT,XQ(E)
  • Actual
    • S(B);
    • Threat
      • S(B),XP(f)
    • Vars
      • K(d);S_FLIGHT,XS(B)::QAB(E)
      • S(b);N_GUARD,SBLOCK,XS(B)::P(A)
      • Q(a);N_GUARD::S(B)
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