MESON Chess Problem Database

Problem Display
PID: 102290 (8/2p1p3/2PbP3/P1N1N3/2Pk4/3P2P1/7K/2Q5 w - - 0 1)

Borgstrom, Nils

Nya Dagligt Allehanda, 1922

8/2p1p3/2PbP3/P1N1N3/2Pk4/3P2P1/7K/2Q5

#2

10 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf4#
  • Tries
    • 1.Qb2+?
      • 1...Kxc5
        • 2.d4#
      • 1...Ke3!
  • Keys
    • 1.Qd2!
      • 1...Kxc5
        • 2.d4#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Bxc5
        • 2.Sf3#
      • 1...Bxe5
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XS(H)::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(G)::P(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);OGATE,S_FLIGHT,XS(G)::P(C)
      • K(a);S_FLIGHT,XS(H)::QAB1(A)
      • B(b);SBLOCK,XS(G)::S(H)
      • B(b);P_PINP(D),SBLOCK,XS(H)::S(G)
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