MESON Chess Problem Database

Problem Display
PID: 274768 (Nn6/1r1B2rb/7R/b2k1p2/p2P1R2/2pKP3/2Q5/1NB5 w - - 0 1)

Tarnawiecki, Antonio

The Hopper, 2023

Nn6/1r1B2rb/7R/b2k1p2/p2P1R2/2pKP3/2Q5/1NB5

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Sxc3#
    • 1...Rb6
      • 2.Sc7#
    • 1...Ra7
      • 2.Qa2#
    • 1...Rbxd7
      • 2.Qa2#
    • 1...Rg2
      • 2.Qxg2#
    • 1...Rgxd7
      • 2.Qg2#
    • 1...Rf7
      • 2.Qg2#
    • 1...Bb4
      • 2.Qa2#
    • 1...Bb6
      • 2.Sxc3#
      • 2.Qa2#
    • 1...Bc7
      • 2.Sxc3#
    • 1...Bd8
      • 2.Sxc3#
    • 1...Bg8
      • 2.Rxf5#
    • 1...Sa6
      • 2.Bc6#
    • 1...Sc6
      • 2.Bxc6#
  • Tries
    • 1.Sb6+?
      • 1...Bxb6
        • 2.Sxc3#
        • 2.Qa2#
      • 1...Rxb6!
    • 1.Sc7+?
      • 1...Bxc7
        • 2.Sxc3#
      • 1...Rxc7!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Rd6#
      • 1...Rbxd7
        • 2.Qa2#
      • 1...Rgxd7
        • 2.Qg2#
      • 1...Rb4
        • 2.Sxc3#
      • 1...Rb6
        • 2.Sc7#
      • 1...Rg6
        • 2.Rxf5#
      • 1...Bb4
        • 2.Qa2#
      • 1...Bc7
        • 2.Sxc3#
      • 1...Bg6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(f);S_CUTB(c)::S(A),XP(a)
    • R(f);N_GUARD,S_CUTB(c)::S(J)
    • R(f);N_GUARD::QAB(C)
    • R(f);N_GUARD,XB(I)::QAB(C)
    • R(g);N_GUARD::QAB(C),XR(g)
    • R(g);N_GUARD,XB(I)::QAB(C)
    • R(g);N_GUARD::QAB(C)
    • B(c);S_CUTR(f)::QAB(C)
    • B(c);N_GUARD::S(A),XP(a)
    • B(h);N_GUARD::R(G),XP(e)
    • S(i);N_GUARD::B(I)
    • S(i);N_GUARD::B(I),XS(i)
  • Tries
    • Try
      • S(J);CHECK
      • Refutation
        • R(f);XS(J)
    • Try
      • S(J);CHECK
      • Vars
        • B(c);XS(J)::S(A),XP(a)
      • Refutation
        • R(f);XS(J)
  • Actual
    • B(B);
    • Threat
      • R1(H)
    • Vars
      • R(f);N_GUARD,XB(I)::QAB(C)
      • R(g);N_GUARD,XB(I)::QAB(C)
      • R(f);S_CUTB(c)::S(A),XP(a)
      • R(f);N_GUARD,S_CUTB(c)::S(J)
      • R(g);S_CUTB(h)::R(G),XP(e)
      • B(c);S_CUTR(f)::QAB(C)
      • B(c);N_GUARD::S(A),XP(a)
      • B(h);S_CUTR(g)::QAB(C)
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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).