MESON Chess Problem Database

Problem Display
PID: 56365 (8/K1R1p3/b3R2b/3p4/6pq/1NBknN2/2p1pn2/2r1r3 w - - 0 1)

Brogi, Giuseppe

Il Due Mosse, 1956

8/K1R1p3/b3R2b/3p4/6pq/1NBknN2/2p1pn2/2r1r3

#2

6 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Sfd1
      • 2.Sxc1#
    • 1...Se4
      • 2.Se5#
    • 1...Sed1
      • 2.Sxe1#
  • Tries
    • 1.Bxe1?
      • threat
        • 2.Sxc1#
        • 2.Rc3#
      • 1...Rxe1
        • 2.Sxe1#
      • 1...gxf3
        • 2.Rc3#
      • 1...Qf6
        • 2.Sxc1#
      • 1...Ra1
        • 2.Rc3#
      • 1...Rb1
        • 2.Rc3#
      • 1...Rd1
        • 2.Rc3#
      • 1...Bc4
        • 2.Sxc1#
        • 2.Sc5#
      • 1...Bg7
        • 2.Sxc1#
      • 1...Sfd1
        • 2.Sxc1#
      • 1...Se4
        • 2.Sxc1#
        • 2.Se5#
      • 1...Sf1
        • 2.Rc3#
      • 1...Sg2
        • 2.Rc3#
      • 1...Sc4
        • 2.Sc5#
      • 1...Sf5
        • 2.Rc3#
      • 1...d4
        • 2.Sxc1#
      • 1...Sed1!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rc3#
      • 1...Bc4
        • 2.Sc5#
      • 1...Sfd1
        • 2.Sxc1#
      • 1...Se4
        • 2.Se5#
      • 1...Sed1
        • 2.Sxe1#
      • 1...Sc4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(e);S_CUTR(b)::S(A),XR(a)
    • S(e);SBLOCK::S(C)
    • S(g);S_CUTR(a)::S(C),XR(b)
  • Tries
    • Try
      • B(B);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(B)::S(C),XR(a)
        • P(h);XS(C)::R1(F)
        • Q(i);::S(A),XR(a)
        • R(a);::R1(F)
        • B(l);::S(A),XR(a)
        • S(e);::S(A),XR(a)
        • S(g);::R1(F)
        • S(g);SBLOCK::S(A)
        • P(j);::S(A),XR(a)
      • Refutation
        • S(g);
  • Actual
    • B(B);
    • Threat
      • R1(F)
    • Vars
      • B(k);SBLOCK::S(A)
      • S(e);S_CUTR(b)::S(A),XR(a)
      • S(e);SBLOCK::S(C)
      • S(g);S_CUTR(a)::S(C),XR(b)
      • S(g);SBLOCK::S(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).