MESON Chess Problem Database

Problem Display
PID: 143993 (7Q/3pBK2/3P4/3kN3/N3p1P1/8/n1P5/5B2 w - - 0 1)

af Hallstrom, Edvard Johannes Gabriel

Tidskrift for Schack, 1909

7Q/3pBK2/3P4/3kN3/N3p1P1/8/n1P5/5B2

#2

9 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.c3?
      • threat
        • 2.Bc4#
      • 1...e3
        • 2.Bg2#
      • 1...Sxc3!
  • Keys
    • 1.Sc6!
      • 1...Kxc6
        • 2.Qa8#
      • 1...dxc6
        • 2.c4#
      • 1...e3
        • 2.Qh1#
      • 1...Sc1
        • 2.Sb4#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(B);
      • Threat
        • B(A)
      • Vars
        • P(b);OGATEB::B(A)
      • Refutation
        • S(a);XP(B)
  • Actual
    • S(E);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(E)::QAB(I)
      • P(d);SBLOCK,XS(E)::P(B)
      • P(b);OGATEB::QAB(I)
      • S(a);N_GUARD::S(E)
      • S(a);N_GUARD::S(E),XS(a)
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