MESON Chess Problem Database

Problem Display
PID: 50095 (5Q2/2P5/N7/2P5/1P6/k1Pn4/1p6/1K1B4 w - - 0 1)

Salai, Ladislav

Tidskrift for Schack, 2003

5Q2/2P5/N7/2P5/1P6/k1Pn4/1p6/1K1B4

#2

8 + 3

5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2?
      • 1...Sxb4
        • 2.Qxb2#
      • 1...Sxc5
        • 2.Qxb2#
      • 1...Sc1
        • 2.Qxb2#
      • 1...Se1
        • 2.Qxb2#
      • 1...Sf4
        • 2.Qxb2#
      • 1...Se5
        • 2.Qxb2#
      • 1...Sxf2!
    • 1.Qf7?
      • threat
        • 2.Qa2#
        • 2.Qb3#
      • 1...Sxb4
        • 2.Qb3#
      • 1...Sxc5
        • 2.Qa2#
      • 1...Sc1!
    • 1.Qg8?
      • threat
        • 2.Qa2#
        • 2.Qb3#
      • 1...Sxb4
        • 2.Qb3#
      • 1...Sxc5
        • 2.Qa2#
      • 1...Sc1!
    • 1.b5?
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sc1
        • 2.c6#
      • 1...Se1
        • 2.c6#
      • 1...Sf2
        • 2.c6#
      • 1...Sf4
        • 2.c6#
      • 1...Se5
        • 2.c6#
      • 1...Sb4!
    • 1.c6?
      • 1...Sxb4
        • 2.Qxb4#
      • 1...Sc1
        • 2.b5#
      • 1...Se1
        • 2.b5#
      • 1...Sf2
        • 2.b5#
      • 1...Sf4
        • 2.b5#
      • 1...Se5
        • 2.b5#
      • 1...Sc5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Sb8#
      • 1...Sxb4
        • 2.Sxb4#
      • 1...Sxc5
        • 2.Sxc5#

This anticipates 96379(2005)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Vars
        • S(c);N_GUARD,XP(D)::QAB1(H),XP(a)
        • S(c);N_GUARD,XP(E)::QAB1(H),XP(a)
        • S(c);N_GUARD::QAB1(H),XP(a)
      • Refutation
        • S(c);XQ(H)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XP(D)::QAR1(H)
        • S(c);XP(E)::QAR1(H)
      • Refutation
        • S(c);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XP(D)::QAR1(H)
        • S(c);XP(E)::QAR1(H)
      • Refutation
        • S(c);
    • Try
      • P(D);
      • Vars
        • S(c);OGATE,P_SPINS(c),XP(E)::QAB(H),XS(c)
        • S(c);N_GUARD::QAB(H)+P(E)
      • Refutation
        • S(c);
    • Try
      • P(E);
      • Vars
        • S(c);OGATE,P_SPINS(c),XP(D)::QAB1(H),XS(c)
        • S(c);N_GUARD::QAB(H)+P(D)
      • Refutation
        • S(c);
  • Actual
    • Q(H);
    • Threat
      • QAR(H)+S(F)
    • Vars
      • S(c);XP(D)::QAR(H)+S(F),XS(c)
      • S(c);XP(E)::QAR(H)+S(F),XS(c)
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