MESON Chess Problem Database

Problem Display
PID: 207458 (q2bQ3/p1pP2Np/brn1p3/pn2p1kB/r5N1/2p1K1p1/8/2B4R w - - 0 1)

Cristoffanini, Guido

Il Problema, 1931

q2bQ3/p1pP2Np/brn1p3/pn2p1kB/r5N1/2p1K1p1/8/2B4R

#2

8 + 16

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Ke2#
      • 2.Kd3#
      • 2.Kf3#
      • 2.Ke4#
    • 1...Re4+
      • 2.Kxe4#
    • 1...Sbd4
      • 2.Ke4#
    • 1...Sb4
      • 2.Ke2#
    • 1...Scd4
      • 2.Kd3#
    • 1...Sb8
      • 2.Qxd8#
    • 1...h6
      • 2.Qg6#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Sxe6#
      • 1...Re4+
        • 2.Kxe4#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Sbd4
        • 2.Ke4#
      • 1...Sb4
        • 2.Ke2#
      • 1...Scd4
        • 2.Kd3#
      • 1...Se7
        • 2.Qf6#
      • 1...Sb8
        • 2.Qxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);CHECK::B(A)+K(C),XR(c)
    • S(e);::B(A)+K(C)
    • S(j);S_CUTR(c)::B(A)+K(C)
    • S(j);N_GUARD,S_CUTQ(o)::QAB(H),XB(p)
    • P(n);N_GUARD::QAR1(H)
  • Actual
    • Q(H);
    • Threat
      • S(G),XP(k)
    • Vars
      • R(c);CHECK::B(A)+K(C),XR(c)
      • B(p);N_GUARD::QAB1(H),XB(p)
      • S(e);::B(A)+K(C)
      • S(j);S_CUTR(c)::B(A)+K(C)
      • S(j);S_CUTB(p)::QAB1(H)
      • S(j);N_GUARD,S_CUTQ(o)::QAB(H),XB(p)
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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).