MESON Chess Problem Database

Problem Display
PID: 56384 (r6B/2pQ4/8/1P3nN1/3qp2p/1P1kb2R/2RN2K1/3B4 w - - 0 1)

Brogi, Giuseppe

Il Due Mosse, 1962

r6B/2pQ4/8/1P3nN1/3qp2p/1P1kb2R/2RN2K1/3B4

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sh6
      • 2.Qxd4#
    • 1...Se7
      • 2.Qxd4#
  • Tries
    • 1.Sb1?
      • threat
        • 2.Rd2#
        • 2.Rc3#
      • 1...Sg3
        • 2.Rc3#
      • 1...Sd6
        • 2.Rd2#
      • 1...Ra2!
    • 1.Sdf3?
      • threat
        • 2.Se1#
        • 2.Se5#
      • 1...Qxd7
        • 2.Se1#
        • 2.Rc3#
      • 1...Qd5
        • 2.Se1#
        • 2.Rc3#
      • 1...Qd6
        • 2.Se1#
        • 2.Rc3#
      • 1...Re8
        • 2.Se1#
      • 1...Sd6
        • 2.Se1#
      • 1...exf3+!
    • 1.Sc4?
      • threat
        • 2.Sb2#
        • 2.Se5#
      • 1...Qxd7
        • 2.Sb2#
        • 2.Rd2#
        • 2.Rc3#
      • 1...Qd5
        • 2.Sb2#
        • 2.Rd2#
        • 2.Rc3#
      • 1...Qd6
        • 2.Sb2#
        • 2.Rd2#
        • 2.Rc3#
      • 1...Ra2
        • 2.Se5#
      • 1...Re8
        • 2.Sb2#
      • 1...Sd6!
    • 1.Sgxe4?
      • threat
        • 2.Sf2#
        • 2.Sc5#
        • 2.Rc3#
      • 1...Qd5
        • 2.Rc3#
      • 1...Sg3
        • 2.Sc5#
        • 2.Rc3#
      • 1...Sd6
        • 2.Sf2#
      • 1...c5
        • 2.Sf2#
        • 2.Sxc5#
        • 2.Rc3#
      • 1...Rg8+!
    • 1.Se6?
      • threat
        • 2.Sf4#
        • 2.Sc5#
      • 1...Sg3
        • 2.Sc5#
      • 1...Sd6
        • 2.Sf4#
      • 1...c5
        • 2.Sf4#
        • 2.Sxc5#
      • 1...Rg8+!
  • Keys
    • 1.Sdxe4!
      • threat
        • 2.Sf2#
        • 2.Sc5#
        • 2.Rd2#
        • 2.Rc3#
      • 1...Qd5
        • 2.Rd2#
        • 2.Rc3#
      • 1...Ra2
        • 2.Sf2#
        • 2.Sc5#
      • 1...Sg3
        • 2.Sc5#
        • 2.Rc3#
      • 1...Sd6
        • 2.Sf2#
        • 2.Rd2#
      • 1...c5
        • 2.Sf2#
        • 2.Sxc5#
        • 2.Rd2#
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::QAR1(I),XQ(c)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);N_SPINB(b)::R1(B)
        • S(f);N_SPINQ(c)::R1(B)
      • Refutation
        • R(h);P_PINR(B)
    • Try
      • S(C);N_PINB(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(h);::S(C)
        • S(f);N_SPINQ(c)::S(C)
      • Refutation
        • P(d);CHECK,XS(C)
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);P_PINR(B)::S(C)
        • R(h);::S(C)
      • Refutation
        • S(f);N_SPINQ(c)
    • Try
      • S(H);XP(d)
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);P_PINS(H)::R1(B)
        • S(f);N_SPINQ(c)::S(H)
      • Refutation
        • R(h);CHECK
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);N_SPINB(b)::S(H)
        • S(f);N_SPINQ(c)::S(H)
      • Refutation
        • R(h);CHECK
  • Actual
    • S(C);XP(d)
    • Threat
      • DUALS(4)
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).