MESON Chess Problem Database

Problem Display
PID: 231060 (8/8/N1K3Q1/4k3/8/7P/3P4/5N2 w - - 0 1)

Cuppini, Alessandro

Kudesnik, 2004

8/8/N1K3Q1/4k3/8/7P/3P4/5N2

#2

6 + 1

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3?
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxf5!
    • 1.Qf7?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke4!
    • 1.Qf6+?
      • 1...Ke4
        • 2.Sc5#
      • 1...Kxf6!
    • 1.d3?
      • 1...Kf4
        • 2.Qf6#
      • 1...Kd4!
    • 1.d4+?
      • 1...Kf4
        • 2.Qg4#
      • 1...Kxd4!
  • Keys
    • 1.Sc5!
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4
        • 2.Qf6#

Anticipated by 7549(1991)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(F)
    • Try
      • P(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAR1(F)
      • K(a);S_FLIGHT::QAR2(F)
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