MESON Chess Problem Database

Problem Display
PID: 19340 (8/7K/3p4/8/kP1R4/N5Q1/1qpN4/4n3 w - - 0 1)

Mikan, Ilja

Tyden rozhlasu, 1945

8/7K/3p4/8/kP1R4/N5Q1/1qpN4/4n3

#2

6 + 5

5505 Dobrodruzstvi 64 poli 1973

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Qb3#
    • 1...Qc1
      • 2.Qb3#
    • 1...Qxd4
      • 2.Qb3#
    • 1...Qb3
      • 2.Qxb3#
  • Tries
    • 1.Qxd6?
      • threat
        • 2.Qa6#
      • 1...Kxa3
        • 2.Qa6#
      • 1...Qxd4!
    • 1.Qd3?
      • threat
        • 2.Qa6#
      • 1...Qxd4
        • 2.Qb3#
      • 1...Sxd3!
    • 1.Qg7?
      • threat
        • 2.Qa7#
      • 1...Kxa3
        • 2.Qa7#
      • 1...Qxa3
        • 2.Qd7#
      • 1...Qxd4!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qa8#
      • 1...Kxa3
        • 2.Qa8#
      • 1...Qxa3
        • 2.Qe8#
      • 1...Qxd4
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_GUARD::QAB1(C)
    • Q(b);N_GUARD,XR(E)::QAB1(C)
    • Q(b);N_GUARD::QAB1(C),XQ(b)
  • Tries
    • Try
      • Q(C);XP(e)
      • Threat
        • QAR2(C)
      • Vars
        • K(d);P-FLIGHT,XS(B)::QAR(C)
      • Refutation
        • Q(b);XR(E)
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • Q(b);N_GUARD,XR(E)::QAB1(C)
      • Refutation
        • S(a);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(d);P-FLIGHT,XS(B)::QAR(C)
        • Q(b);SBLOCK,XS(B)::QAB(C)
      • Refutation
        • Q(b);XR(E)
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(d);P-FLIGHT,XS(B)::QAR(C)
      • Q(b);SBLOCK,XS(B)::QAB(C)
      • Q(b);N_GUARD,XR(E)::QAB1(C)
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