MESON Chess Problem Database

Problem Display
PID: 108956 (8/4Q1p1/3p4/8/K2k1Nn1/5P2/5n2/2R1N2q w - - 0 1)

Miltner, Vratislav

Sachova skladba, 1986

8/4Q1p1/3p4/8/K2k1Nn1/5P2/5n2/2R1N2q

#2

6 + 6

6490 yacpdb 2009
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf3
      • 2.Sxf3#
    • 1...Sd1
      • 2.Qe4#
    • 1...Sd3
      • 2.Qe4#
    • 1...Sh3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Se3
      • 2.Qxg7#
    • 1...Se5
      • 2.Qa7#
    • 1...d5
      • 2.Se2#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Rc4#
      • 1...Qxf3+
        • 2.Sxf3#
      • 1...Se4
        • 2.Qxe4#
      • 1...Se5
        • 2.Qa7#
      • 1...Se3
        • 2.Qxg7#
      • 1...d5
        • 2.Sc2#
        • 2.Se2#
      • 1...Qf1!
    • 1.Sc2+?
      • 1...Kc4
        • 2.Qc7#
      • 1...Kc5
        • 2.Qc7#
      • 1...Kc3!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Rc4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Se3
        • 2.Qb2#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se5
        • 2.Qxf2#
      • 1...d5
        • 2.Se6#

Anticipated by 135748(1964)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(a);XP(C)::S(B),XQ(a)
    • S(b);N_GUARD::QAR1(F)
    • S(b);N_GUARD::QAR1(F),XS(b)
    • S(d);N_GUARD,SBLOCK::QAB(F),XP(f)
    • S(d);SBLOCK::QAB(F)
    • P(e);SBLOCK::S(E)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • R1(A)
      • Vars
        • Q(a);CHECK,XP(C)::S(B),XQ(a)
        • S(b);N_GUARD::QAR1(F),XS(b)
        • S(d);SBLOCK::QAB(F)
        • S(d);N_GUARD,SBLOCK::QAB(F),XP(f)
      • Refutation
        • Q(a);
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR(F)
        • K(c);P_SPINP(e),S_FLIGHT::QAR2(F)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • R1(A)
    • Vars
      • S(b);N_GUARD::QAR1(F),XS(b)
      • S(d);SBLOCK::QAB(F)
      • S(b);N_GUARD::QAR1(F)
      • S(d);N_GUARD,SBLOCK::QAB(F),XS(b)
      • P(e);SBLOCK::S(E)
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