MESON Chess Problem Database

Problem Display
PID: 81297 (8/7B/6q1/1Q6/3B1p1N/R2P4/2P1k3/KR6 w - - 0 1)

Salai, Ladislav

1/3 Prize, Moment, 1998-1999

8/7B/6q1/1Q6/3B1p1N/R2P4/2P1k3/KR6

#2

9 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Qxd3#
  • Tries
    • 1.Ra2?
      • threat
        • 2.c3#
      • 1...Kd2
        • 2.c3#
      • 1...Qf7
        • 2.c4#
      • 1...Qe6
        • 2.c4#
      • 1...Qg8
        • 2.c4#
      • 1...Qa6!
    • 1.Qb2?
      • threat
        • 2.c4#
      • 1...Kd2
        • 2.c4#
      • 1...Qxd3
        • 2.cxd3#
      • 1...Qb6!
    • 1.c4?
      • threat
        • 2.Qb2#
      • 1...Kd2
        • 2.Qb2#
      • 1...Qb6
        • 2.Ra2#
      • 1...Qxd3!
  • Keys
    • 1.c3!
      • threat
        • 2.Ra2#
      • 1...Kd2
        • 2.Ra2#
      • 1...Qf7
        • 2.Qb2#
      • 1...Qa6
        • 2.Qb2#
      • 1...Qe6
        • 2.Qb2#
      • 1...Qg8
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(c);OGATE,P_SPINQ(c),XP(E)::QAB1(H),XQ(c)
  • Tries
    • Try
      • R(D);
      • Threat
        • R(D)+P(C)
      • Vars
        • K(a);P-FLIGHT::R(D)+P(C)
        • Q(c);::R(D)+P(C)
      • Refutation
        • Q(c);P_PINR(D)
    • Try
      • Q(H);
      • Threat
        • QAR(H)+P(C)
      • Vars
        • K(a);P-FLIGHT::QAR(H)+P(C)
        • Q(c);OGATE,XP(E)::QAR(H)+P(C),XQ(c)
      • Refutation
        • Q(c);
    • Try
      • P(C);
      • Threat
        • QAR(H)
      • Vars
        • K(a);P-FLIGHT::QAR2(H)
        • Q(c);::R(D)
      • Refutation
        • Q(c);XP(E)
  • Actual
    • P(C);
    • Threat
      • R(D)
    • Vars
      • K(a);P-FLIGHT::R(D)
      • Q(c);::QAR(H)
      • Q(c);P_PINR(D)::QAR(H)
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