MESON Chess Problem Database

Problem Display
PID: 102760 (8/3p2p1/3Q4/P1Np4/3k1P2/1P2p3/1K6/8 w - - 0 1)

van Eelde, Antonie Clarus Johannes

ABC des Echecs, 1906

8/3p2p1/3Q4/P1Np4/3k1P2/1P2p3/1K6/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qb8?
      • threat
        • 2.Qb4#
      • 1...Kxc5
        • 2.Qb6#
      • 1...e2!
    • 1.Qf6+?
      • 1...Kxc5
        • 2.Qb6#
      • 1...gxf6!
  • Keys
    • 1.Qg6!
      • 1...Kxc5
        • 2.Qb6#
      • 1...e2
        • 2.Qg1#
      • 1...d6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);N_PINP(c)
      • Threat
        • QAR2(F)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(F)
      • Refutation
        • P(a);
    • Try
      • Q(F);CHECK,N_PINP(c)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(F)
      • Refutation
        • P(e);XQ(F)
  • Actual
    • Q(F);N_PINP(c)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(F)
      • P(a);OGATEB::QAB(F)
      • P(d);N_GUARD::S(E)
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