MESON Chess Problem Database

Problem Display
PID: 93182 (8/8/8/2P5/2k5/K1N1P3/1P3Q2/8 w - - 0 1)

Balslev, Ole

Skakbladet, 1967

8/8/8/2P5/2k5/K1N1P3/1P3Q2/8

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qe2#
  • Tries
    • 1.Ka4?
      • 1...Kd3
        • 2.Qe2#
      • 1...Kxc5!
    • 1.Qe1?
      • 1...Kd3
        • 2.Qe2#
      • 1...Kxc5!
    • 1.Qg3?
      • 1...Kxc5
        • 2.Qc7#
      • 1...Kd3!
    • 1.Qg2?
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qe2#
      • 1...Kxc5!
    • 1.Qf3?
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qe2#
      • 1...Kxc5!
    • 1.Qf4+?
      • 1...Kxc5
        • 2.Qc7#
      • 1...Kd3!
    • 1.Qf7+?
      • 1...Kxc5
        • 2.Qc7#
      • 1...Kd3!
    • 1.c6?
      • 1...Kd3
        • 2.Qe2#
      • 1...Kc5!
  • Keys
    • 1.Qh2!
      • 1...Kd3
        • 2.Qe2#
      • 1...Kxc5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • Q(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(B)
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