MESON Chess Problem Database

Problem Display
PID: 152363 (1b6/3p4/K3p3/p1N1p2Q/R1n1Pkr1/2P5/qpPR1Pb1/6N1 w - - 0 1)

Piatesi, Antonio

L'Italia Scacchistica, 1985

1b6/3p4/K3p3/p1N1p2Q/R1n1Pkr1/2P5/qpPR1Pb1/6N1

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Se2#
    • 1...Rh4
      • 2.Se2#
      • 2.Qxh4#
    • 1...Rg5
      • 2.Se2#
    • 1...Rg6
      • 2.Se2#
    • 1...Rg7
      • 2.Se2#
    • 1...Rg8
      • 2.Se2#
    • 1...Bf3
      • 2.Sh3#
    • 1...Sxd2
      • 2.Sd3#
    • 1...Sa3
      • 2.Sd3#
    • 1...Se3
      • 2.Sd3#
    • 1...Sb6
      • 2.Sd3#
    • 1...Sd6
      • 2.Sd3#
  • Tries
    • 1.Sxe6+?
      • 1...Kxe4
        • 2.Qxg4#
      • 1...dxe6!
    • 1.Re2?
      • threat
        • 2.Sd3#
      • 1...Bxe4
        • 2.Rxe4#
      • 1...Rg3!
    • 1.Rd3?
      • threat
        • 2.Se2#
      • 1...Bf1
        • 2.Rf3#
      • 1...Bf3
        • 2.Sh3#
        • 2.Rxf3#
      • 1...Se3!
    • 1.Qh2+?
      • 1...Rg3
        • 2.Qxg3#
      • 1...Kg5!
  • Keys
    • 1.Rxd7!
      • threat
        • 2.Rf7#
      • 1...Bxe4
        • 2.Sxe6#
      • 1...Rg5
        • 2.Se2#
      • 1...Rg6
        • 2.Se2#
      • 1...Rg7
        • 2.Se2#
      • 1...Se3
        • 2.Sd3#
      • 1...Sd6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(f);::S(A)
    • B(c);N_GUARD,SBLOCK::S(A)
    • S(d);XR(C)::S(H)
    • S(d);::S(H)
  • Tries
    • Try
      • S(H);CHECK,XP(i)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(d),XP(G)::QAR2(I),XR(f)
      • Refutation
        • P(j);XS(H)
    • Try
      • R(C);
      • Threat
        • S(H)
      • Vars
        • B(c);OGATE,XP(G)::R1(C),XB(c)
      • Refutation
        • R(f);
    • Try
      • R(C);
      • Threat
        • S(A)
      • Vars
        • B(c);N_GUARD::R1(C)
      • Refutation
        • S(d);
    • Try
      • Q(I);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAB1(I),XR(f)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • R(C);XP(j)
    • Threat
      • R(C)
    • Vars
      • B(c);SBLOCK,XP(G)::S(H),XP(i)
      • R(f);::S(A)
      • S(d);::S(H)
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).