MESON Chess Problem Database

Problem Display
PID: 269182 (3n1r2/2Bp1Q2/3P1n1p/RqN1k3/6p1/2PpN1P1/4b3/4R1K1 w - - 0 1)

Chicco, Adriano

Comm., Ohquist MT, 1950

3n1r2/2Bp1Q2/3P1n1p/RqN1k3/6p1/2PpN1P1/4b3/4R1K1

#2

10 + 10

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Sxd7#
    • 1...Sd5
      • 2.Sxg4#
    • 1...Sh5
      • 2.Sxg4#
    • 1...Sh7
      • 2.Sxg4#
    • 1...Se8
      • 2.Sxg4#
    • 1...Sg8
      • 2.Sxg4#
    • 1...Sb7
      • 2.Qe7#
  • Tries
    • 1.Qe6+?
      • 1...dxe6
        • 2.d7#
      • 1...Sxe6!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qf5#
      • 1...Se4
        • 2.Sxd7#
      • 1...Sd5
        • 2.Sxg4#
      • 1...Sh5
        • 2.Sxd7#
      • 1...Sh7
        • 2.Sxd7#
      • 1...Se8
        • 2.Sxd7#
      • 1...Sg8
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(f);N_GUARD,SBLOCK::S(G),XP(h)
    • S(f);N_GUARD::S(D),XP(c)
    • S(i);N_GUARD::QAR2(J)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • P(h);OGATE,XQ(J)::B(I)+P(H)
      • Refutation
        • S(i);XQ(J)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • S(f);N_GUARD::S(G),XP(h)
      • S(f);N_GUARD,SBLOCK::S(D),XP(c)
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