MESON Chess Problem Database

Problem Display
PID: 251907 (1Br5/2pqp2P/b2P4/2QPkpP1/p3p3/2P3P1/B2N3K/8 w - - 0 1)

Slagmolen, Cornelis

Probleemblad, 1982

1Br5/2pqp2P/b2P4/2QPkpP1/p3p3/2P3P1/B2N3K/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.dxc6#
    • 1...Qe6
      • 2.dxe6#
    • 1...Qxd6
      • 2.Qd4#
    • 1...Bc4
      • 2.Sxc4#
    • 1...Bb7
      • 2.Sc4#
    • 1...cxd6
      • 2.Qd4#
    • 1...c6
      • 2.Qd4#
      • 2.dxc6#
    • 1...exd6
      • 2.Qd4#
    • 1...e6
      • 2.dxe6#
  • Tries
    • 1.dxe7?
      • threat
        • 2.d6#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Qc6
        • 2.dxc6#
      • 1...Qe6
        • 2.dxe6#
      • 1...Qd6
        • 2.Qd4#
      • 1...Bc4
        • 2.Sxc4#
      • 1...Bb7
        • 2.Sc4#
      • 1...Qb5!
  • Keys
    • 1.dxc7!
      • threat
        • 2.d6#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Qxc7
        • 2.Qxe7#
      • 1...Rxc7
        • 2.h8Q#
        • 2.h8B#
      • 1...Qb5
        • 2.Qxe7#
      • 1...Qc6
        • 2.dxc6#
      • 1...Qe6
        • 2.dxe6#
      • 1...Qd6
        • 2.Qd4#
      • 1...Bc4
        • 2.Sxc4#
      • 1...Bb7
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(g);OGATE::QAR(F)+P(G),XQ(g)
    • Q(g);SBLOCK,XP(I)::QAB1(F)
    • B(e);N_GUARD::S(B),XB(e)
    • B(e);N_GUARD::S(B)
    • P(f);P_SPINP(f),XP(I)::QAB1(F)
    • P(h);SBLOCK,XP(I)::QAB1(F)
    • P(h);OGATE::QAR(F)+P(G),XP(h)
  • Tries
    • Try
      • P(I);P_PINP(f),XP(h)
      • Threat
        • QAR(F)+P(G)
      • Vars
        • Q(g);OGATE,P_SPINQ(g),XP(G)::QAR1(F),XQ(g)
        • Q(g);OGATE::QAR(F)+P(G),XQ(g)
        • Q(g);N_SPINP(f),SBLOCK::QAB1(F)
        • B(e);N_GUARD::S(B),XB(e)
        • B(e);N_GUARD::S(B)
      • Refutation
        • Q(g);
  • Actual
    • P(I);XP(f)
    • Threat
      • QAR(F)+P(G)
    • Vars
      • Q(g);OGATE,P_SPINQ(g),XP(G)::QAR1(F),XQ(g)
      • Q(g);N_GUARD,P_SPINQ(g),XP(I)::QAR2(F),XP(h)
      • R(i);N_GUARD,P_SPINR(i),XP(I)::P=Q
      • Q(g);N_GUARD::QAR2(F),XP(h)
      • Q(g);OGATE::QAR(F)+P(G),XQ(g)
      • Q(g);SBLOCK::QAB1(F)
      • B(e);N_GUARD::S(B),XB(e)
      • B(e);N_GUARD::S(B)
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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).