MESON Chess Problem Database

Problem Display
PID: 268023 (b3Q1K1/1BBpp1P1/r1r5/3p4/R1nbk1P1/q5P1/2N1n3/4N3 w - - 0 1)

Willems, PJH

El Diluvio, 1933

b3Q1K1/1BBpp1P1/r1r5/3p4/R1nbk1P1/q5P1/2N1n3/4N3

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qg6#
    • 1...Sd6
      • 2.Qxe7#
    • 1...e6
      • 2.Qg6#
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qf5#
      • 1...Sxg3
        • 2.Qf4#
      • 1...Sd6
        • 2.Qxe7#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Rf6
        • 2.Qxd5#
      • 1...Bf6
        • 2.Qg6#
      • 1...Se3
        • 2.Qf3#
      • 1...e6
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(d);P_SPINS(c),S_CUTR(h)::QAB(I)
    • S(c);N_GUARD,P_SPINB(d),S_CUTQ(b),S_CUTR(h)::QAR(I),XP(j)
    • P(j);S_CUTR(h)::QAB(I)
  • Actual
    • Q(I);N_PINP(j)
    • Threat
      • QAB1(I)
    • Vars
      • S(a);N_GUARD,XP(C)::QAR1(I)
      • S(c);N_GUARD,P_SPINB(d),S_CUTQ(b),S_CUTR(h)::QAR(I),XP(j)
      • Q(b);N_GUARD::QAB1(I),XQ(b)
      • R(h);P_SPINP(f)::QAB1(I),XP(f)
      • B(d);P_SPINS(c),S_CUTR(h)::QAB(I)
      • S(c);P_SPINB(d),S_CUTQ(b)::QAB1(I)
      • P(j);S_CUTR(h)::QAB(I)
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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).