MESON Chess Problem Database

Problem Display
PID: 275875 (2r1r3/p2R4/3N4/1P1bpP2/1P1k1P2/K1pN3R/2pbQn1q/2n5 w - - 0 1)

Faust, Hans-Helmut

Probleemblad, 1953

2r1r3/p2R4/3N4/1P1bpP2/1P1k1P2/K1pN3R/2pbQn1q/2n5

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Qxe5#
    • 1...Rf8
      • 2.Qxe5#
    • 1...Rg8
      • 2.Qxe5#
    • 1...Rh8
      • 2.Qxe5#
    • 1...Be1
      • 2.Qe3#
    • 1...Be3
      • 2.Qxe3#
    • 1...Be6
      • 2.Qxe5#
  • Tries
    • 1.Qxf2+?
      • 1...Be3
        • 2.Qxe3#
      • 1...Qxf2!
  • Keys
    • 1.Se1!
      • threat
        • 2.Sxc2#
      • 1...Bxe1
        • 2.Qe3#
      • 1...Bh1
        • 2.Se4#
      • 1...Ba2
        • 2.Sc4#
      • 1...Bg2
        • 2.Se4#
      • 1...Bb3
        • 2.Sc4#
      • 1...Bf3
        • 2.Se4#
      • 1...Bc4
        • 2.Sxc4#
      • 1...Be4
        • 2.Sxe4#
      • 1...Bc6
        • 2.Qc4#
      • 1...Be6
        • 2.Qxe5#
      • 1...Bb7
        • 2.Sxb7#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Ba8
        • 2.Sb7#
      • 1...Bg8
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 5
  • Sets
    • R(l);N_GUARD::QAB1(A),XP(i)
    • B(c);N_GUARD::QAB1(A)
    • B(c);N_GUARD::QAB1(A),XB(c)
    • B(h);S_CUTR(l)::QAB1(A),XP(i)
  • Tries
    • Try
      • Q(A);CHECK,XS(d)
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAB1(A),XB(c)
      • Refutation
        • Q(e);XQ(A)
  • Actual
    • S(C);
    • Threat
      • S(C),XP(b)
    • Vars
      • B(c);N_GUARD,XS(C)::QAB1(A)
      • B(h);::R(J)+S(I)
      • B(h);::R(J)+S(I),XB(h)
      • B(h);N_GUARD,S_CUTR(k)::QAR1(A)
      • B(h);S_CUTR(l)::QAB1(A),XP(i)
HTML5 logo

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).