MESON Chess Problem Database

Problem Display
PID: 70712 (6B1/1p4N1/5n2/1KP1N2R/3krr1R/Q4P2/p1P5/2n3b1 w - - 0 1)

Prete, Rodolfo

Il Due Mosse, 1956

6B1/1p4N1/5n2/1KP1N2R/3krr1R/Q4P2/p1P5/2n3b1

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qb4#
    • 1...Rxf3
      • 2.Sxf3#
    • 1...Be3
      • 2.Qb2#
      • 2.Qb4#
      • 2.c3#
    • 1...Se2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sd5
      • 2.Se6#
    • 1...b6
      • 2.Sc6#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Qb2#
        • 2.Qb4#
      • 1...Rxf3
        • 2.Qb4#
      • 1...Sxg4
        • 2.Rd5#
      • 1...a1Q
        • 2.Qb4#
        • 2.Qxa1#
      • 1...a1B
        • 2.Qb4#
        • 2.Qxa1#
      • 1...Re3
        • 2.Qb4#
      • 1...Se2
        • 2.Qb4#
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
        • 2.c3#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Rxg4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qb2#
      • 1...Rxf3
        • 2.Se6#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...Re3
        • 2.Sf5#
      • 1...Se2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
        • 2.c3#
      • 1...Sd5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(e);P_SPINR(f),SBLOCK::QAR2(B)
    • R(f);P_SPINR(e),XP(C)::S(G),XR(f)
    • S(a);N_GUARD::QAR1(B)
    • S(a);N_GUARD::QAR1(B),XS(a)
    • S(g);SBLOCK::S(I)
    • P(h);N_GUARD::S(G)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XP(C)::QAR2(B)
        • S(g);N_GUARD,XS(G)::R1(H)
        • R(e);::QAR2(B)
        • S(g);N_GUARD::R1(H),XS(g)
      • Refutation
        • R(f);XS(G)
  • Actual
    • S(G);
    • Threat
      • QAB(B)
    • Vars
      • R(f);P_SPINR(e),XP(C)::S(I)
      • P(c);OGATE::QAB(B),XQ(c)
      • P(c);OGATE::QAB(B),XB(c)
      • R(e);P_SPINR(f)::S(I)
      • S(a);N_GUARD::QAR1(B)
      • S(g);N_GUARD::R1(H),XS(g)
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).