MESON Chess Problem Database

Problem Display
PID: 258332 (1q6/7Q/4pp1n/2Ppk3/R1p3pN/2P1pBP1/1N1P2K1/1b1n2B1 w - - 0 1)

Uris, Miguel

Problemas, 2022

1q6/7Q/4pp1n/2Ppk3/R1p3pN/2P1pBP1/1N1P2K1/1b1n2B1

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qc7
      • 2.Qxc7#
    • 1...Qxb2
      • 2.Qc7#
    • 1...Qb3
      • 2.Qc7#
    • 1...Qb4
      • 2.Qc7#
    • 1...Qb5
      • 2.Qc7#
    • 1...Qa8
      • 2.Qc7#
    • 1...Qe8
      • 2.Qc7#
    • 1...Qg8
      • 2.Qc7#
    • 1...Qh8
      • 2.Qc7#
    • 1...Sf5
      • 2.Sg6#
    • 1...exd2
      • 2.Bd4#
    • 1...e2
      • 2.Bd4#
    • 1...gxf3+
      • 2.Sxf3#
    • 1...d4
      • 2.Sxc4#
    • 1...f5
      • 2.Qg7#
  • Tries
    • 1.Qxh6?
      • threat
        • 2.Qf4#
      • 1...f5
        • 2.Qg7#
      • 1...gxf3+!
  • Keys
    • 1.Rxc4!
      • threat
        • 2.d4#
      • 1...gxf3+
        • 2.Sxf3#
      • 1...Qxb2
        • 2.Qc7#
      • 1...exd2
        • 2.Bd4#
      • 1...dxc4
        • 2.Sxc4#
      • 1...f5
        • 2.Qg7#
      • 1...Bd3
        • 2.Sxd3#
      • 1...Sf5
        • 2.Sg6#
      • 1...d4
        • 2.cxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • Q(k);N_GUARD::QAB(K),XQ(k)
    • Q(k);N_GUARD,P_PINP(C),XS(B)::QAB(K)
    • Q(k);N_GUARD::QAB(K)
    • S(j);SBLOCK,S_CUTB(a)::S(I)
    • P(c);OGATE,XP(C)::B(A)
    • P(c);OGATE::B(A)
    • P(e);CHECK,XB(F)::S(I),XP(e)
    • P(f);N_GUARD::S(B),XP(d)
    • P(i);OGATEB::QAB(K)
  • Tries
    • Try
      • Q(K);XS(j)
      • Threat
        • QAB1(K)
      • Vars
        • P(i);OGATEB::QAB(K)
      • Refutation
        • P(e);CHECK,XB(F)
  • Actual
    • R(H);XP(d)
    • Threat
      • P(C)
    • Vars
      • P(e);CHECK,XB(F)::S(I),XP(e)
      • Q(k);N_GUARD,P_PINP(C),XS(B)::QAB(K)
      • P(c);OGATE,XP(C)::B(A)
      • P(f);XR(H)::S(B),XP(f)
      • P(i);OGATEB::QAB(K)
      • B(a);N_GUARD::S(B),XB(a)
      • S(j);SBLOCK,S_CUTB(a)::S(I)
      • P(f);OGATE::P(E),XP(f)
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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).