MESON Chess Problem Database

Problem Display
PID: 88339 (8/5K2/B5N1/8/6k1/2Q3P1/6R1/8 w - - 0 1)

van Dijk, Nils Gustav Gerard

The Problemist, 1976

8/5K2/B5N1/8/6k1/2Q3P1/6R1/8

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Be2+?
      • 1...Kh3
        • 2.Sf4#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kg5!
    • 1.Qe5?
      • 1...Kf3
        • 2.Qe2#
      • 1...Kh3!
    • 1.Qf6?
      • 1...Kh5
        • 2.Qh4#
      • 1...Kh3!
    • 1.Qe3?
      • 1...Kf5
        • 2.Bc8#
        • 2.Qf4#
        • 2.g4#
      • 1...Kh5
        • 2.Be2#
        • 2.g4#
      • 1...Kh3!
  • Keys
    • 1.Qd2!
      • 1...Kf3
        • 2.Qe2#
      • 1...Kh3
        • 2.Bc8#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kh5
        • 2.Be2#
        • 2.g4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(a);S_FLIGHT::S(E)
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::B(D)
      • K(a);S_FLIGHT::QAR1(B)
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