MESON Chess Problem Database

Problem Display
PID: 197379 (8/8/4pp2/8/5k1p/2PPN3/4P2P/5KQ1 w - - 0 1)

van Eelde, Antonie Clarus Johannes

Haagsche Courant, 1898

8/8/4pp2/8/5k1p/2PPN3/4P2P/5KQ1

#2

7 + 4

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...h3
      • 2.Qg3#
  • Tries
    • 1.Qg4+?
      • 1...Ke5
        • 2.Qd4#
      • 1...Kxe3!
  • Keys
    • 1.Qg7!
      • 1...Kxe3
        • 2.Qh6#
      • 1...Ke5
        • 2.Qc7#
      • 1...f5
        • 2.Sg2#
      • 1...h3
        • 2.Qg3#
      • 1...e5
        • 2.Qh6#

This anticipates 28303(1910)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT,XS(G)::QAB(B)
      • K(a);P_SPINP(d),S_FLIGHT::QAB(B)
      • P(d);SBLOCK::S(G)
      • P(b);N_GUARD::QAB1(B)
      • P(c);SBLOCK::QAB(B)
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