MESON Chess Problem Database

Problem Display
PID: 175594 (K7/3Q4/2Rb4/3k2P1/3P4/1P4P1/4N3/8 w - - 0 1)

van Dijk, Johannes

Haagsche Courant, 1899

K7/3Q4/2Rb4/3k2P1/3P4/1P4P1/4N3/8

#2

8 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qg4?
      • 1...Bxg3
        • 2.Qf3#
        • 2.Qe6#
      • 1...Bf4
        • 2.Qf3#
        • 2.Qe6#
      • 1...Ba3
        • 2.Qf3#
        • 2.Qe6#
      • 1...Bb4
        • 2.Qf3#
        • 2.Qe6#
      • 1...Bc5
        • 2.Qf3#
        • 2.Qe6#
      • 1...Be5
        • 2.Qf3#
      • 1...Bc7
        • 2.Qf3#
        • 2.Qe6#
      • 1...Be7
        • 2.Qf3#
        • 2.Qe6#
      • 1...Bb8
        • 2.Qf3#
        • 2.Qe6#
      • 1...Bf8
        • 2.Qf3#
        • 2.Qe6#
      • 1...Kxc6!
    • 1.Qf5+?
      • 1...Be5
        • 2.Qf3#
      • 1...Kxc6!
    • 1.Qf7+?
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke4!
  • Keys
    • 1.Qh7!
      • 1...Kxc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Sf4#
      • 1...Bxg3
        • 2.Qh1#
      • 1...Ba3
        • 2.Qh1#
      • 1...Bb4
        • 2.Qh1#
      • 1...Bf4
        • 2.Qh1#
      • 1...Bc5
        • 2.Qh1#
      • 1...Be5
        • 2.Qh1#
      • 1...Bc7
        • 2.Qh1#
      • 1...Be7
        • 2.Qh1#
      • 1...Bb8
        • 2.Qh1#
      • 1...Bf8
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);N_PINB(b)
      • Vars
        • B(b);::QAB(G)
      • Refutation
        • K(a);S_FLIGHT,XR(F)
    • Try
      • Q(G);CHECK,N_PINB(b)
      • Vars
        • B(b);P_SPINB(b)::QAB(G)
      • Refutation
        • K(a);S_FLIGHT,XR(F)
    • Try
      • Q(G);CHECK,N_PINB(b)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XR(F)::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);N_PINB(b)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(F)::QAB1(G)
      • K(a);P_SPINB(b),S_FLIGHT::S(A)
      • B(b);XP(C)::QAB(G)
      • B(b);::QAB(G)
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