MESON Chess Problem Database

Problem Display
PID: 263198 (1b4K1/n3B2P/4pp2/N1p1k2P/6B1/n1N1Ppp1/3P3q/rR6 w - - 0 1)

Uris, Miguel

SuperProblem, 2022

1b4K1/n3B2P/4pp2/N1p1k2P/6B1/n1N1Ppp1/3P3q/rR6

#2

10 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sxb1
      • 2.Sc4#
    • 1...Sc2
      • 2.Sc4#
    • 1...Sc4
      • 2.Sxc4#
    • 1...S3b5
      • 2.Sc4#
    • 1...S7b5
      • 2.Sc6#
    • 1...Sc6
      • 2.Sxc6#
    • 1...Sc8
      • 2.Sc6#
    • 1...f5
      • 2.h8Q#
      • 2.h8B#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.d4#
      • 1...f5
        • 2.h8Q#
        • 2.h8B#
      • 1...Sc2
        • 2.Sc4#
      • 1...S3b5
        • 2.Sc4#
      • 1...S7b5
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Qxd2!
    • 1.Rb4?
      • threat
        • 2.Re4#
      • 1...cxb4
        • 2.d4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...f5
        • 2.h8Q#
        • 2.h8B#
      • 1...c4!
    • 1.Rb5?
      • threat
        • 2.Rxc5#
        • 2.d4#
      • 1...S3xb5
        • 2.Sc4#
      • 1...S7xb5
        • 2.Sc6#
      • 1...Rd1
        • 2.Rxc5#
      • 1...Bd6
        • 2.d4#
      • 1...Sc2
        • 2.Sc4#
        • 2.Rxc5#
      • 1...Sc6
        • 2.Sxc6#
        • 2.Rxc5#
      • 1...Qxd2!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rxe6#
      • 1...Bd6
        • 2.Bxd6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...f5
        • 2.h8Q#
        • 2.h8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • S(c);N_GUARD,XR(A)::S(F)
    • S(c);N_GUARD::S(F)
    • S(c);N_GUARD::S(F),XS(c)
    • S(j);N_GUARD::S(F)
    • S(j);N_GUARD::S(F),XS(j)
    • P(i);::P=Q
  • Tries
    • Try
      • B(H);XP(f)
      • Threat
        • P(B)
      • Vars
        • P(i);::P=Q
        • S(c);N_GUARD::S(F)
        • S(j);N_GUARD::S(F)
        • S(j);N_GUARD::S(F),XS(j)
      • Refutation
        • Q(b);XP(B)
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • P(f);N_GUARD,XR(A)::P(B)
        • S(c);N_GUARD::S(F),XS(c)
        • P(i);::P=Q
      • Refutation
        • P(f);
    • Try
      • R(A);P_PINP(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);N_GUARD,N_SPINP(f),XR(A)::S(F)
        • S(j);N_GUARD,N_SPINP(f),XR(A)::S(F)
        • R(a);::R(A),XP(f)
        • B(k);::P(B)
      • Refutation
        • Q(b);XP(B)
  • Actual
    • R(A);
    • Threat
      • R1(A),XP(h)
    • Vars
      • B(k);N_GUARD::B(H),XB(k)
      • S(j);N_GUARD::S(F),XS(j)
      • P(i);::P=Q
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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).