MESON Chess Problem Database

Problem Display
PID: 102448 (2b1RqB1/1P3r2/N3nP1p/N2kB2Q/1p3P1K/1P1n1P2/3b1p2/2rR4 w - - 0 1)

Salardini, Erio

Le Courrier des Echecs, 1957

2b1RqB1/1P3r2/N3nP1p/N2kB2Q/1p3P1K/1P1n1P2/3b1p2/2rR4

#2

13 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.bxc4#
    • 1...Rd7
      • 2.Bxe6#
    • 1...Sdc5
      • 2.Sxb4#
    • 1...Sxe5
      • 2.Qxe5#
    • 1...Sec5
      • 2.Sc7#
  • Tries
    • 1.Qg6?
      • threat
        • 2.Qe4#
      • 1...Sg5
        • 2.Qxd3#
      • 1...Rc4
        • 2.bxc4#
      • 1...Sdc5
        • 2.Sxb4#
      • 1...Sec5
        • 2.Sc7#
      • 1...Sxe5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qxd3#
      • 1...Rc4
        • 2.bxc4#
      • 1...Sdc5
        • 2.Sxb4#
      • 1...Sec5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE,P_PINP(D)::P(B),XR(a)
    • R(i);OGATE,P_SPINS(g)::B(M),XS(g)
    • S(d);N_GUARD,P_SPINB(b),SBLOCK,S_CUTQ(k)::S(I),XP(e)
    • S(d);OGATE,P_SPINB(b),P_SPINS(d),XB(G)::QAR1(H),XS(d)
    • S(g);N_GUARD,P_SPINR(i),SBLOCK,S_CUTR(a)::S(I)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • S(g);N_GUARD,P_SPINR(i)::QAR2(H),XS(d)
        • R(a);OGATE,P_PINP(D)::P(B),XR(a)
        • S(d);N_GUARD,P_SPINB(b),SBLOCK,S_CUTQ(k)::S(I),XP(e)
        • S(g);N_GUARD,P_SPINR(i),SBLOCK,S_CUTR(a)::S(I)
      • Refutation
        • S(d);P_SPINB(b),XB(G)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • S(d);OGATE,P_SPINB(b),P_SPINS(d),XB(G)::QAR1(H),XS(d)
      • S(g);N_GUARD,P_SPINR(i)::QAR2(H),XS(d)
      • R(a);OGATE,P_PINP(D)::P(B),XR(a)
      • S(d);N_GUARD,P_SPINB(b),SBLOCK,S_CUTQ(k)::S(I),XP(e)
      • S(g);N_GUARD,P_SPINR(i),SBLOCK,S_CUTR(a)::S(I)
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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).