MESON Chess Problem Database

Problem Display
PID: 196738 (3R4/3N4/2p5/1p1k1P1n/1bN1r2r/2p2Q2/2K4p/5B2 w - - 0 1)

Rietveld, Johannes Jacob

L'Italia Scacchistica, 1919

3R4/3N4/2p5/1p1k1P1n/1bN1r2r/2p2Q2/2K4p/5B2

#2

7 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd1#
      • 2.Qd3#
    • 1...Bc5
      • 2.Sdb6#
      • 2.Sf6#
    • 1...c5
      • 2.Sde5#
      • 2.Sb8#
  • Tries
    • 1.Scb6+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kd6!
    • 1.Sb8+?
      • 1...Kc5
        • 2.Sa6#
      • 1...Bd6!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Qd3#
      • 1...Kxc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...bxc4
        • 2.Qd1#
      • 1...c5
        • 2.Sde5#
      • 1...Rh3
        • 2.Qxe4#
      • 1...Bc5
        • 2.Sdb6#
      • 1...Sf4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(g);N_SPINR(d),P-FLIGHT::QAR1(C)
      • Refutation
        • K(g);N_SPINR(d),P-FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(g);N_SPINR(d),P-FLIGHT::S(F)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • B(A);
    • Threat
      • QAR2(C)
    • Vars
      • K(g);N_SPINR(d),S_FLIGHT,XS(D)::QAB1(C)
      • K(g);N_SPINR(d),P-FLIGHT::QAR1(C)
      • P(f);SBLOCK,XS(D)::QAR(C)
      • P(i);SBLOCK,S_CUTB(c)::R(G)+S(F)
      • R(e);N_GUARD::QAB1(C),XR(d)
      • B(c);SBLOCK::R(G)+S(F),DCHECK
      • S(h);S_CUTR(e)::QAB1(C),XR(d)
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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).