MESON Chess Problem Database

Problem Display
PID: 174257 (7Q/1q5n/3p1rN1/N1p5/2Bkp1R1/2r5/4R1K1/B7 w - - 0 1)

Buchner, Rudolf

9th Prize, L'Italia Scacchistica, 1937

7Q/1q5n/3p1rN1/N1p5/2Bkp1R1/2r5/4R1K1/B7

#2

8 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qc8
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qb2
      • 2.Rxe4#
    • 1...Qb3
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qb4
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qb5
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qb6
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qa7
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qc7
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qd7
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qf7
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qg7
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Qb8
      • 2.Rexe4#
      • 2.Rgxe4#
    • 1...Sg5
      • 2.Qxf6#
    • 1...Sf8
      • 2.Qxf6#
  • Tries
    • 1.Sb3+?
      • 1...Qxb3
        • 2.Rexe4#
        • 2.Rgxe4#
      • 1...Kxc4!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sf3#
      • 1...Ke5
        • 2.Bxc3#
      • 1...Qb2
        • 2.Rxe4#
      • 1...Qg7
        • 2.Rxe4#
      • 1...Sg5
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(g);N_GUARD,N_SPINR(a),P_PINR(B),P_SPINR(f)::R1(E),XP(c)
    • S(h);N_GUARD::QAB(H),XR(f)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT,XB(D)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(b);S_FLIGHT::B(A),XR(a)
      • Q(g);N_GUARD,N_SPINR(a),P_PINR(B),P_SPINR(f)::R1(E),XP(c)
      • Q(g);N_GUARD,P_PINR(E)::R1(B),XP(c)
      • S(h);N_GUARD::QAB(H),XR(f)
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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).