MESON Chess Problem Database

Problem Display
PID: 21126 (1B2K3/6pn/Rb2Nkpq/7r/3N3p/1n5B/5r2/Q4R2 w - - 0 1)

Goethart, Gerhardus Hendrik

3rd HM., Algemeen Handelsblad, 1917

1B2K3/6pn/Rb2Nkpq/7r/3N3p/1n5B/5r2/Q4R2

#2

8 + 10

3360 Simple Two-move Themes 1924
20 De Problemist 1931
5227 Schaak..., maar raak! 1969
3098 FIDE Album (1914-1944) (I) 1971
721 Variantim 1990
136 Problem Observer 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sxb3+?
      • 1...Re5
        • 2.Bxe5#
        • 2.Qxe5#
      • 1...Bd4!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Se4#
      • 1...Kxg5
        • 2.Se6#
      • 1...Qxg5
        • 2.Rxb6#
      • 1...Rxg5
        • 2.Rxb6#
      • 1...Sxg5
        • 2.Sxb3#
      • 1...Sd2
        • 2.Sdf3#
      • 1...Sc5
        • 2.Sde6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK,XS(b)
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • S(F);P_PINB(e)
    • Threat
      • S(F)
    • Vars
      • K(f);N_SPINB(e),N_SPINR(a),S_FLIGHT,XS(F)::S(D)
      • Q(h);SBLOCK,XS(F)::R(E),XB(e)
      • R(d);SBLOCK,XS(F)::R(E),XB(e)
      • S(j);SBLOCK,XS(F)::QAB(A)+S(D),XS(b)
      • S(b);N_GUARD::QAB(A)+S(D)
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