MESON Chess Problem Database

Problem Display
PID: 198860 (4B3/5R2/2r1PpPp/2Pp1k2/3PNNn1/4pP2/1b1PRP1B/1Q2K3 w - - 0 1)

Meschick, AG

Brisbane Courier, 1921

4B3/5R2/2r1PpPp/2Pp1k2/3PNNn1/4pP2/1b1PRP1B/1Q2K3

#2

15 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf2
      • 2.Rxf6#
    • 1...Sxh2
      • 2.Rxf6#
    • 1...Se5
      • 2.Rxf6#
  • Tries
    • 1.Sg3+?
      • 1...Kxf4
        • 2.Qf5#
      • 1...Kg5!
  • Keys
    • 1.Sh3!
      • threat
        • 2.Seg5#
      • 1...exd2+
        • 2.Sxd2#
      • 1...exf2+
        • 2.Sexf2#
      • 1...Kxe6
        • 2.Bd7#
      • 1...Kxg6
        • 2.Sxf6#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Rxe6
        • 2.Sg3#
        • 2.Sd6#
      • 1...Sxf2
        • 2.Rxf6#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Se5
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • S(c);N_GUARD,XP(E)::R1(N),XP(g)
    • S(c);N_GUARD,XB(F)::R1(N),XP(g)
    • S(c);N_GUARD::R1(N),XP(g)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(e);P-FLIGHT,XS(J)::QAR1(A)
      • Refutation
        • K(e);N_SPINP(g),P-FLIGHT
  • Actual
    • S(J);
    • Threat
      • QAB(A)+S(I)
    • Vars
      • P(b);CHECK,XP(C)::QAB(A)+S(I),XP(b)
      • P(b);CHECK,XP(E)::QAB(A)+S(I),XP(b)
      • K(e);N_SPINP(g),OGATEB,S_FLIGHT,XP(L)::B(O)
      • K(e);N_SPINP(g),S_FLIGHT,XP(M)::QAB(A)+S(I),XP(g)
      • R(f);XP(K)::QAB(A)+S(I),XR(f)
      • S(c);N_GUARD,XP(E)::R1(N),XP(g)
      • P(d);N_SPINP(g),OGATE,P_SPINP(d),XS(I)::QAB1(A),XP(d)
      • S(c);N_GUARD::R1(N),XP(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).