MESON Chess Problem Database

Problem Display
PID: 102010 (r1n1NQ1K/8/1pN1R3/1p2P2p/pPk1P1n1/2p2P2/2B1Pbr1/3R4 w - - 0 1)

Cuppini, Alessandro

Vratnica-64, 2003

r1n1NQ1K/8/1pN1R3/1p2P2p/pPk1P1n1/2p2P2/2B1Pbr1/3R4

#2

12 + 11

10584 Poponin-50 JT 2006
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Rd4#
    • 1...Bg3
      • 2.Rd4#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bh4
      • 2.Rd4#
    • 1...Se3
      • 2.Rd4#
    • 1...Sxe5
      • 2.Sxe5#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sa7
      • 2.Sd6#
    • 1...Se7
      • 2.Sd6#
  • Tries
    • 1.Qd6?
      • threat
        • 2.Qd3#
        • 2.Qd5#
      • 1...Sxe5
        • 2.Sxe5#
        • 2.Qd5#
      • 1...Bd4
        • 2.Rxd4#
        • 2.Qxd4#
        • 2.Qd5#
      • 1...Se3
        • 2.Rd4#
        • 2.Qd3#
        • 2.Qd4#
      • 1...Sf6
        • 2.Qd3#
      • 1...Se7
        • 2.Qd3#
      • 1...Sxd6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Red6#
        • 2.Rf6#
        • 2.Rg6#
        • 2.Rh6#
        • 2.Re7#
      • 1...Sxe5
        • 2.Rxe5#
      • 1...Ra7
        • 2.Re7#
      • 1...Se3
        • 2.Rd4#
      • 1...Sf6
        • 2.Rxf6#
      • 1...Sh6
        • 2.Rxh6#
      • 1...Sd6
        • 2.Rexd6#
      • 1...Se7
        • 2.Rxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::R1(A)
    • B(a);N_GUARD,P_PINP(G)::R1(A),XB(a)
    • S(f);S_CUTB(a)::R1(A)
    • S(f);XP(G)::S(H),XS(f)
    • S(k);N_GUARD::S(J),XS(k)
    • S(k);N_GUARD::S(J)
  • Tries
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::QAB1(K)
        • S(k);P_PINS(J)::QAB1(K)
      • Refutation
        • S(k);P_PINS(J),XQ(K)
  • Actual
    • Q(K);
    • Threat
      • DUALS(5)
    • Vars
      • S(f);OGATE,XP(G)::QAB(K)+R(I),XS(f)
      • R(j);::QAB(K)+R(I)
      • S(f);S_CUTB(a)::R1(A)
      • S(f);::QAB(K)+R(I),XS(f)
      • S(k);P_PINS(J)::QAB(K)+R(I),XS(k)
HTML5 logo

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).