MESON Chess Problem Database

Problem Display
PID: 178116 (8/8/2P5/8/4k1NK/Q3P3/B7/8 w - - 0 1)

van Dijk, Johannes

Haagsche Courant, 1899

8/8/2P5/8/4k1NK/Q3P3/B7/8

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qd3#
  • Tries
    • 1.Kh5?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kf3!
    • 1.Sh6?
      • 1...Ke5
        • 2.Qe7#
      • 1...Kf3!
    • 1.Bc4?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kf3!
    • 1.Bd5+?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kxd5!
    • 1.Bf7?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kf3!
    • 1.Bg8?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kf3!
    • 1.Qb2?
      • 1...Kf3
        • 2.Bd5#
      • 1...Kf5
        • 2.Qb1#
        • 2.Qc2#
      • 1...Kd3!
    • 1.Qd6?
      • threat
        • 2.Qd5#
      • 1...Kf5
        • 2.Bb1#
        • 2.Qd3#
        • 2.Qe6#
      • 1...Kf3!
    • 1.Qb3?
      • threat
        • 2.Qd5#
      • 1...Kf5
        • 2.Bb1#
        • 2.Qc2#
        • 2.Qe6#
        • 2.Qb1#
        • 2.Qd3#
      • 1...Kf3!
    • 1.Qc3?
      • 1...Kf5
        • 2.Qc2#
        • 2.Qd3#
      • 1...Kf3!
    • 1.Qd3+?
      • 1...Kf3
        • 2.Bd5#
      • 1...Kxd3!
    • 1.c7?
      • 1...Kf5
        • 2.Qd3#
      • 1...Kf3!
  • Keys
    • 1.Qa6!
      • 1...Kf3
        • 2.Bd5#
      • 1...Kf5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(B)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT,XB(A)
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • P(F);
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT::QAB(B)
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