MESON Chess Problem Database

Problem Display
PID: 243568 (8/6p1/1K3pP1/2pkPP2/1p1PpQ2/1P6/2N5/3n4 w - - 0 1)

Dimitrov, Nikolai

Revista Romana de Sah, 1961

8/6p1/1K3pP1/2pkPP2/1p1PpQ2/1P6/2N5/3n4

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qf3#
    • 1...cxd4
      • 2.Sxb4#
    • 1...fxe5
      • 2.Qxe5#
  • Tries
    • 1.exf6?
      • threat
        • 2.Qe5#
      • 1...cxd4
        • 2.Sxb4#
      • 1...gxf6!
  • Keys
    • 1.Qd2!
      • 1...cxd4
        • 2.Qxd4#
      • 1...fxe5
        • 2.dxc5#
      • 1...e3
        • 2.Qg2#
      • 1...Sb2
        • 2.Se3#
      • 1...Sf2
        • 2.Se3#
      • 1...Sc3
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...c4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB::QAB(D)
    • P(d);N_GUARD,SBLOCK,XP(C)::S(A),XP(b)
    • P(f);OGATE,XP(E)::QAR1(D),XP(f)
  • Tries
    • Try
      • P(E);XP(f)
      • Threat
        • QAR1(D)
      • Vars
        • P(d);N_GUARD,SBLOCK,XP(C)::S(A),XP(b)
      • Refutation
        • P(g);XP(E)
  • Actual
    • Q(D);
    • Vars
      • P(d);OGATE,P_SPINP(d),XP(C)::QAR1(D),XP(d)
      • P(f);SBLOCK,XP(E)::QAR(D)+P(C),XP(d)
      • P(c);OGATEB::QAB(D)
      • S(a);N_GUARD::S(A)
      • S(a);N_GUARD::S(A),XS(a)
      • P(d);N_GUARD::S(A),XP(b)
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