MESON Chess Problem Database

Problem Display
PID: 225724 (2B5/B6N/1K3p1p/1p1kpR2/p4Rnr/2n4p/r6Q/b7 w - - 0 1)

Reiprich, Gejza

Praca, 1948

2B5/B6N/1K3p1p/1p1kpR2/p4Rnr/2n4p/r6Q/b7

#2

7 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Qxd2#
    • 1...Ra3
      • 2.Qd2#
    • 1...Bb2
      • 2.Qd2#
  • Tries
    • 1.Qxa2+?
      • 1...Kd6
        • 2.Qe6#
      • 1...Sxa2!
  • Keys
    • 1.Kc7!
      • threat
        • 2.Rd4#
      • 1...Sxh2
        • 2.Sxf6#
      • 1...Se4
        • 2.Qxa2#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Sb1
        • 2.Qxa2#
      • 1...Sd1
        • 2.Qxa2#
      • 1...Se2
        • 2.Qh1#
      • 1...Sf2
        • 2.Sxf6#
      • 1...Se3
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::QAR(A),XR(b)
    • R(b);N_GUARD::QAR(A)
    • B(a);S_CUTR(b)::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK,XR(b)
      • Vars
        • K(i);N_SPINP(j),OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • S(c);XQ(A)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • R1(B)
    • Vars
      • S(f);N_GUARD,XQ(A)::S(F),XP(k)
      • S(c);N_GUARD::QAB(A),XR(b)
      • R(b);N_GUARD::QAR(A),XR(b)
      • S(c);N_GUARD,S_CUTR(b)::QAB(A)
      • S(f);N_GUARD::S(F),XP(k)
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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).