MESON Chess Problem Database

Problem Display
PID: 273423 (4Q3/3p1p2/1R1P1Pp1/3knbRq/1P3p2/1PKp1n2/3N2B1/8 w - - 0 1)

Winter, Rudolf

Schackvarlden, 1932

4Q3/3p1p2/1R1P1Pp1/3knbRq/1P3p2/1PKp1n2/3N2B1/8

#2

10 + 10

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Qxe5#
    • 1...Be4
      • 2.Qxf7#
    • 1...Bg4
      • 2.Qxe5#
    • 1...Be6
      • 2.Qa8#
    • 1...Sc4
      • 2.Qe4#
      • 2.bxc4#
    • 1...Sg4
      • 2.Bxf3#
      • 2.Qe4#
  • Tries
    • 1.Bxf3+?
      • 1...Be4
        • 2.Bxe4#
        • 2.Qxf7#
        • 2.Qxe5#
      • 1...Sxf3
        • 2.Qe4#
      • 1...Qxf3!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...Sxc4
        • 2.bxc4#
      • 1...Be4
        • 2.Qxf7#
      • 1...Be6
        • 2.Qa8#
      • 1...Sg4
        • 2.Bxf3#
      • 1...Sc6
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(f);::QAR1(J),XS(e)
    • B(f);N_GUARD,N_SPINS(b),P_SPINS(e)::QAB(J),XP(j)
    • B(f);SBLOCK,S_CUTS(e)::QAB(J)
  • Tries
    • Try
      • B(B);CHECK,XS(b)
      • Vars
        • S(e);OGATE,P_SPINB(f),XB(B)::QAB1(J)
      • Refutation
        • Q(g);XB(B)
  • Actual
    • S(A);
    • Threat
      • QAR1(J),XS(e)
    • Vars
      • K(d);S_FLIGHT::QAR1(J),XS(e)
      • S(e);OGATE,P_SPINB(f),XS(A)::P(C),XS(e)
      • B(f);N_GUARD,N_SPINS(b),P_SPINS(e),SBLOCK::QAB(J),XP(j)
      • B(f);SBLOCK,S_CUTS(e)::QAB(J)
      • S(e);N_GUARD,P_SPINB(f),S_CUTQ(g)::B(B),XS(b)
      • S(e);P_SPINB(f),SBLOCK::R(G)
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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).