MESON Chess Problem Database

Problem Display
PID: 104361 (n1Q5/2nB1N2/1P6/k2p4/3B4/1K6/8/8 w - - 0 1)

Koludrovic, Branko

Sahovski Glasnik, 1969

n1Q5/2nB1N2/1P6/k2p4/3B4/1K6/8/8

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Qxa8#
    • 1...Se8
      • 2.Qxa8#
    • 1...Sxb6
      • 2.Bc3#
  • Tries
    • 1.Se5?
      • 1...Sxb6
        • 2.Bc3#
      • 1...Sb5
        • 2.Sc6#
      • 1...Se6
        • 2.Qxa8#
      • 1...Se8
        • 2.Qxa8#
      • 1...Sa6!
    • 1.Sd6?
      • 1...Sxb6
        • 2.Bc3#
      • 1...Sa6
        • 2.Sb7#
      • 1...Se6
        • 2.Qxa8#
      • 1...Se8
        • 2.Qxa8#
      • 1...Sb5!
    • 1.Qxc7?
      • threat
        • 2.Qa7#
      • 1...Ka6
        • 2.Qa7#
      • 1...Sxc7!
    • 1.bxc7?
      • threat
        • 2.Qxa8#
      • 1...Sb6
        • 2.Bc3#
      • 1...Sxc7!
  • Keys
    • 1.Sd8!
      • 1...Sxb6
        • 2.Bc3#
      • 1...Sa6
        • 2.Sb7#
      • 1...Sb5
        • 2.Sc6#
      • 1...Se6
        • 2.Qxa8#
      • 1...Se8
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAR(F),XS(d)
    • S(d);SBLOCK,XP(C)::B(B)
  • Tries
    • Try
      • S(E);
      • Vars
        • S(d);SBLOCK,XP(C)::B(B)
        • S(c);SBLOCK::S(E)
        • S(c);N_GUARD::QAR(F),XS(d)
      • Refutation
        • S(c);
    • Try
      • S(E);
      • Vars
        • S(d);SBLOCK,XP(C)::B(B)
        • S(c);SBLOCK::S(E)
        • S(c);N_GUARD::QAR(F),XS(d)
      • Refutation
        • S(c);
    • Try
      • Q(F);XS(c)
      • Threat
        • QAR2(F)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • S(d);XQ(F)
    • Try
      • P(C);XS(c)
      • Threat
        • QAR(F),XS(d)
      • Vars
        • S(d);SBLOCK::B(B)
      • Refutation
        • S(d);XP(C)
  • Actual
    • S(E);
    • Vars
      • S(d);SBLOCK,XP(C)::B(B)
      • S(c);SBLOCK::S(E)
      • S(c);N_GUARD::QAR(F),XS(d)
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