MESON Chess Problem Database

Problem Display
PID: 194927 (4bB2/1PPqrp2/Kp6/1p1p3Q/N1k2b2/p1P1rpp1/P3P3/3N1B2 w - - 0 1)

Nield, Joshua

L'Italia Scacchistica, 1918

4bB2/1PPqrp2/Kp6/1p1p3Q/N1k2b2/p1P1rpp1/P3P3/3N1B2

#2

11 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.exd3#
    • 1...R3e4
      • 2.e3#
    • 1...R3e5
      • 2.e3#
      • 2.e4#
    • 1...R3e6
      • 2.e3#
      • 2.e4#
    • 1...R7e4
      • 2.Sxb6#
    • 1...R7e5
      • 2.Sxb6#
    • 1...Be5
      • 2.Sxe3#
    • 1...d4
      • 2.Sxb6#
  • Tries
    • 1.Sxe3+?
      • 1...Bxe3
        • 2.exf3#
      • 1...Rxe3!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qd4#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...R3xe5
        • 2.e3#
        • 2.e4#
      • 1...R7xe5
        • 2.Sxb6#
      • 1...Bxe5
        • 2.Sxe3#
      • 1...Rd3
        • 2.exd3#
      • 1...Re4
        • 2.e3#
      • 1...d4
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE::P(D),XR(b)
    • R(b);OGATE::B(B)+P(D)
    • R(k);::S(F),XP(i)
    • B(f);N_GUARD,S_CUTR(k)::S(A),XR(b)
    • P(h);::S(F),XP(i)
  • Tries
    • Try
      • S(A);CHECK,XR(b)
      • Vars
        • B(f);XS(A)::B(B)+P(D),XP(c)
      • Refutation
        • R(k);XS(A)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • R(b);OGATE,XP(E)::QAR1(G),XR(b)
      • R(k);XQ(G)::S(F),XP(i)
      • B(f);N_GUARD,XQ(G)::S(A),XR(b)
      • R(b);OGATE::P(D),XR(b)
      • R(b);OGATE::B(B)+P(D)
      • P(h);::S(F),XP(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).