MESON Chess Problem Database

Problem Display
PID: 21487 (8/3KN3/8/2p1k3/7Q/3P4/8/8 w - - 0 1)

Weenink, Henri Gerard Maria

Good Companions (April), 1919

8/3KN3/8/2p1k3/7Q/3P4/8/8

#2

4 + 2

3132 The Good Companion Two-Mover 1922
16055 HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) 1932
249 Schach-Echo 1932
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1947
3295 Einfuhrung in die Welt des Schachproblem 1984
273 Mat Plus 1995
5309 O Mosqueteiro do Rei 1997
3713 Snap 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.d4#
  • Tries
    • 1.Sc6+?
      • 1...Kd5
        • 2.Qg5#
        • 2.Qh1#
        • 2.Qc4#
        • 2.Qe4#
        • 2.Qh5#
      • 1...Kf5!
    • 1.Sg6+?
      • 1...Kd5
        • 2.Qc4#
        • 2.Qe4#
      • 1...Kf5!
    • 1.Sg8?
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Kf5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qe4#
      • 1...Kxd5
        • 2.Qe4#
      • 1...Kf5
        • 2.Qh5#

Anticipated by 121001(0000)

This anticipates 178231(2007)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(a);N_GUARD::P(A)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT,XS(D)::QAB1(B)
      • K(b);P-FLIGHT::QAR2(B)
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