MESON Chess Problem Database

Problem Display
PID: 195297 (2QB4/4N3/3p2p1/2N1k3/1p3R2/1K6/6n1/4n3 w - - 0 1)

van Beek, Huibrecht

Haagsche Courant, 1911

(First published on Mon Jul 10 1911)

2QB4/4N3/3p2p1/2N1k3/1p3R2/1K6/6n1/4n3

#2

6 + 6

15601 Albrecht-Leiss-Degener Collection 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...Sf3
      • 2.Sd3#
    • 1...dxc5
      • 2.Bc7#
    • 1...d5
      • 2.Bc7#
      • 2.Qc7#
      • 2.Qb8#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sd7+?
      • 1...Ke6
        • 2.Rf6#
      • 1...Kxf4!
    • 1.Qg4?
      • threat
        • 2.Sd7#
        • 2.Qg5#
      • 1...dxc5
        • 2.Bc7#
      • 1...d5
        • 2.Bc7#
      • 1...Se3
        • 2.Sd7#
      • 1...Sf3
        • 2.Sd3#
        • 2.Sd7#
      • 1...Sh4
        • 2.Sd7#
      • 1...g5
        • 2.Sd7#
        • 2.Rf5#
        • 2.Qf5#
        • 2.Qxg5#
      • 1...Sxf4!
  • Keys
    • 1.Qh3!
      • 1...Kxf4
        • 2.Sxg6#
      • 1...Sxf4
        • 2.Qh8#
      • 1...dxc5
        • 2.Bc7#
      • 1...d5
        • 2.Bc7#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sf3
        • 2.Sd3#
      • 1...Sh4
        • 2.Qe3#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • P(e);OGATEB,XS(C)::B(F)
    • P(f);N_GUARD::QAR1(E)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(B)
      • Refutation
        • K(d);S_FLIGHT,XR(B)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATEB,XS(C)::B(F)
        • P(e);OGATEB::B(F)
        • S(b);::S(C)
      • Refutation
        • S(b);XR(B)
  • Actual
    • Q(E);
    • Vars
      • K(d);S_FLIGHT,XR(B)::S(D),XP(f)
      • S(b);SBLOCK,XR(B)::QAB(E)
      • P(e);OGATEB,XS(C)::B(F)
      • P(e);OGATEB::B(F)
      • S(b);N_GUARD::QAR2(E),XS(b)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(a)
      • S(b);N_GUARD::QAR2(E)
      • P(f);N_GUARD::QAR1(E)
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