MESON Chess Problem Database

Problem Display
PID: 198717 (2K1Q3/B7/2PRP3/1pr5/2k2pRr/P6p/1PB1P3/2n5 w - - 0 1)

Gamberini, E

L'Italia Scacchistica, 1921

2K1Q3/B7/2PRP3/1pr5/2k2pRr/P6p/1PB1P3/2n5

#2

11 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rhh5
      • 2.Rxf4#
    • 1...Rh6
      • 2.Rxf4#
    • 1...Rh7
      • 2.Rxf4#
    • 1...Rh8
      • 2.Rxf4#
    • 1...Re5
      • 2.Rd4#
    • 1...Rf5
      • 2.Rd4#
    • 1...Rg5
      • 2.Rd4#
    • 1...Rch5
      • 2.Rd4#
    • 1...Rxc6+
      • 2.Qxc6#
    • 1...Sb3
      • 2.Bd3#
    • 1...Sd3
      • 2.exd3#
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxc5#
      • 1...Rxc6+
        • 2.Rxc6#
      • 1...Rhxh5
        • 2.Rxf4#
      • 1...Rcxh5
        • 2.Rd4#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Re5
        • 2.Rd4#
      • 1...Rf5
        • 2.Rd4#
      • 1...Rg5
        • 2.Rd4#
      • 1...Sb3
        • 2.Bd3#
      • 1...Sd3
        • 2.exd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(e);N_GUARD::R(E),XP(d)
    • R(e);N_GUARD,P_PINQ(K)::R(E),XP(d)
    • R(g);N_PINP(F)::R1(G)
    • R(g);CHECK,OGATE,XP(F)::QAR2(K),XR(g)
    • S(a);N_GUARD,SBLOCK::B(B)
    • S(a);OGATE::P(C),XS(a)
  • Actual
    • Q(K);
    • Threat
      • QAR1(K),XR(g)
    • Vars
      • R(g);CHECK,OGATE,XP(F)::R(G),XR(g)
      • R(e);N_GUARD,XQ(K)::R(E),XP(d)
      • R(g);N_PINP(F),XQ(K)::R1(G)
      • R(g);N_GUARD,N_PINP(F)::QAB1(K),XR(g)
      • R(g);N_PINP(F)::R1(G)
      • S(a);N_GUARD,SBLOCK::B(B)
      • S(a);OGATE::P(C),XS(a)
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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).