MESON Chess Problem Database

Problem Display
PID: 72444 (3R2B1/1Q1nPR2/4N3/2p5/pbk5/r4N1K/b1pnpP2/B7 w - - 0 1)

Segers, Marcel

Tijdschrift vd NSB, 1931

3R2B1/1Q1nPR2/4N3/2p5/pbk5/r4N1K/b1pnpP2/B7

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Sxd2#
    • 1...Kd3
      • 2.Se5#
  • Tries
    • 1.Rf4+?
      • 1...Kb3
        • 2.Sxd2#
        • 2.Sed4#
        • 2.Sxc5#
      • 1...Kd3
        • 2.Se1#
        • 2.Se5#
      • 1...Se4!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qd5#
      • 1...Rxf3+
        • 2.Rxf3#
      • 1...Kb3
        • 2.Sxd2#
      • 1...Kd3
        • 2.Se5#
      • 1...Rd3
        • 2.Rf4#
      • 1...Bc3
        • 2.Qb5#
      • 1...Ba5
        • 2.Qb5#
      • 1...Sb6
        • 2.Rf4#
      • 1...Sf6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(h);N_PINS(C),P_SPINB(g),S_FLIGHT::S(C),XS(c)
    • K(h);N_PINS(C),P_SPINS(j),S_FLIGHT::S(C)
  • Tries
    • Try
      • R(H);CHECK
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • S(E);
    • Threat
      • QAB1(F)
    • Vars
      • R(e);CHECK,OGATE,XS(C)::B(J)+R(H),XR(e)
      • K(h);N_PINS(C),P_SPINB(g),S_FLIGHT::S(C),XS(c)
      • K(h);N_PINS(C),P_SPINS(j),S_FLIGHT::S(C)
      • R(e);SBLOCK::B(J)+R(H),DCHECK
      • B(g);N_PINS(C)::QAB1(F)
      • B(g);::QAB1(F)
      • S(j);::B(J)+R(H),DCHECK
      • S(j);::B(J)+R(H),XS(j)
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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).