MESON Chess Problem Database

Problem Display
PID: 217460 (3B4/6N1/2Bk2n1/1K6/5p2/2Pn1N2/8/3Q1q2 w - - 0 1)

af Hallstrom, Edvard Johannes Gabriel

Suomen Shakki, 1953

3B4/6N1/2Bk2n1/1K6/5p2/2Pn1N2/8/3Q1q2

#2

7 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Qxd3#
    • 1...Qh3
      • 2.Qxd3#
    • 1...Qe1
      • 2.Qxd3#
    • 1...Qh1
      • 2.Qxd3#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Sf7#
      • 1...Ke5
        • 2.Sf7#
      • 1...Se5
        • 2.Se4#
        • 2.Sf5#
        • 2.Se8#
      • 1...Sh8!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sc4#
      • 1...Ke5
        • 2.Sc4#
      • 1...Sge5
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::QAR(A),XS(b)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • K(d);N_SPINS(b),S_FLIGHT::S(C)
      • Refutation
        • S(e);
  • Actual
    • S(C);N_PINS(b)
    • Threat
      • S(C)
    • Vars
      • K(d);S_FLIGHT::S(C)
      • S(e);SBLOCK::S(C)
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