MESON Chess Problem Database

Problem Display
PID: 17158 (5R2/5n2/1K1p4/1p1P4/1p1P2P1/1B1Nkp2/R4N1P/Q7 w - - 0 1)

van Dijk, Johannes

4th HM., Brisbane Courier, 1925

5R2/5n2/1K1p4/1p1P4/1p1P2P1/1B1Nkp2/R4N1P/Q7

#2

11 + 6

133 The Problemist Supplement 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Sh6
      • 2.Re8#
    • 1...Sh8
      • 2.Re8#
  • Tries
    • 1.Sxb4?
      • 1...Kf4
        • 2.Qc1#
      • 1...Sg5
        • 2.Qc3#
      • 1...Sh6
        • 2.Qc3#
      • 1...Sd8
        • 2.Qc3#
      • 1...Sh8
        • 2.Qc3#
      • 1...Se5!
    • 1.Sc5?
      • 1...Kf4
        • 2.Qc1#
      • 1...Se5
        • 2.Sd1#
      • 1...Sg5
        • 2.Sd1#
      • 1...Sh6
        • 2.Sd1#
      • 1...Sd8
        • 2.Sd1#
      • 1...Sh8
        • 2.Sd1#
      • 1...dxc5!
    • 1.Re2+?
      • 1...Kxe2
        • 2.Qe1#
      • 1...fxe2!
  • Keys
    • 1.Sb2!
      • 1...Kd2
        • 2.Sc4#
      • 1...Ke2
        • 2.Sc4#
      • 1...Kxf2
        • 2.Sc4#
      • 1...Kxd4
        • 2.Sbd1#
      • 1...Kf4
        • 2.Qc1#
      • 1...Se5
        • 2.Sbd1#
      • 1...Sg5
        • 2.Sbd1#
      • 1...Sh6
        • 2.Sbd1#
      • 1...Sd8
        • 2.Sbd1#
      • 1...Sh8
        • 2.Sbd1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD::R(K)
  • Tries
    • Try
      • S(F);XP(c)
      • Vars
        • K(a);P_SPINS(f),S_FLIGHT::QAB(A)
        • S(f);::QAR2(A)
      • Refutation
        • S(f);
    • Try
      • S(F);
      • Vars
        • K(a);P_SPINS(f),S_FLIGHT::QAB(A)
        • S(f);::S(C)
      • Refutation
        • P(e);XS(F)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XR(B)::QAR1(A)
      • Refutation
        • P(b);XR(B)
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT::R(B)+S(F),DCHECK
      • K(a);P-FLIGHT::R(B)+S(F)
      • K(a);S_FLIGHT,XS(C)::R(B)+S(F)
      • K(a);S_FLIGHT,XP(G)::QAB(A)+S(F)
      • K(a);P_SPINS(f),S_FLIGHT::QAB(A)
      • S(f);::S(F)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).