MESON Chess Problem Database

Problem Display
PID: 110115 (8/4p3/4Q3/8/4P3/3PkP2/4N3/4K3 w - - 0 1)

Krizovensky, Marian

Sachove umeni (Ceskoslovensky sach), 1979

8/4p3/4Q3/8/4P3/3PkP2/4N3/4K3

#2

6 + 2

6490 yacpdb 2009
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Qb3#
    • 1...Kxf3
      • 2.Qh3#
  • Tries
    • 1.Qe5?
      • 1...Kxd3
        • 2.Qc3#
      • 1...Kxf3
        • 2.Qg3#
      • 1...e6!
    • 1.Qb6+?
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kxf3!
    • 1.Qh6+?
      • 1...Kxf3
        • 2.Qh3#
      • 1...Kxd3!
    • 1.d4?
      • threat
        • 2.Qb3#
      • 1...Kd3
        • 2.Qb3#
      • 1...Kxf3!
    • 1.f4?
      • threat
        • 2.Qh3#
      • 1...Kf3
        • 2.Qh3#
      • 1...Kxd3!
  • Keys
    • 1.e5!
      • 1...Kxd3
        • 2.Qb3#
      • 1...Kxf3
        • 2.Qh3#

This anticipates 15242(1981)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(F)
    • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(F)
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::QAR1(F)
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR1(F)
      • Refutation
        • P(b);
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • P(C);
      • Threat
        • QAR(F)
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • P(D);
      • Threat
        • QAR(F)
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
  • Actual
    • P(E);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(C)::QAR2(F)
      • K(a);OGATEB,P-FLIGHT,XP(D)::QAR2(F)
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