MESON Chess Problem Database

Problem Display
PID: 198715 (3R4/1Np5/p1k5/p1P1p1N1/r3p3/pRbBQ3/3P4/6Kb w - - 0 1)

Foschini, Ettore

L'Alfiere di Re, 1921

3R4/1Np5/p1k5/p1P1p1N1/r3p3/pRbBQ3/3P4/6Kb

#2

9 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Sxa5#
  • Tries
    • 1.Bb5+?
      • 1...Kxb7
        • 2.c6#
      • 1...axb5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qh6#
      • 1...Bxd2
        • 2.Sxe5#
      • 1...Rb4
        • 2.Sxa5#
      • 1...Bb4
        • 2.Qxe4#
      • 1...Rd4
        • 2.Sxe5#
      • 1...Bd4
        • 2.Bxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD,S_CUTB(c)::S(H),XP(f)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(i);OGATE,S_FLIGHT,XS(H)::P(F)
      • Refutation
        • P(h);XB(D)
  • Actual
    • S(G);
    • Threat
      • QAR(E)
    • Vars
      • B(c);N_GUARD,XP(B)::S(G),XP(g)
      • R(d);N_GUARD,S_CUTB(c)::S(H),XP(f)
      • B(c);S_CUTR(d)::QAB(E),XP(e)
      • R(d);S_CUTB(c)::S(G),XP(g)
      • B(c);P_PINQ(E),S_CUTR(d)::B(D),XP(e)
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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).