MESON Chess Problem Database

Problem Display
PID: 257515 (2R1R2b/qN1pn3/p1b3Q1/Np1P1p2/3k1P2/2ppnB2/2P1PB2/7K w - - 0 1)

Uris, Miguel

Phenix, 2021

2R1R2b/qN1pn3/p1b3Q1/Np1P1p2/3k1P2/2ppnB2/2P1PB2/7K

#2

12 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb7
      • 2.Sb3#
    • 1...Bf6
      • 2.Qxf6#
    • 1...Bg7
      • 2.Qxg7#
    • 1...Sxg6
      • 2.Bxe3#
    • 1...Sxc8
      • 2.Bxe3#
    • 1...Sg8
      • 2.Bxe3#
  • Tries
    • 1.Qxc6?
      • threat
        • 2.Sb3#
        • 2.Qxc3#
      • 1...Sxd5
        • 2.Sb3#
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Bxe3#
      • 1...Sxc8
        • 2.Sb3#
        • 2.Bxe3#
      • 1...Qc5
        • 2.Qxc5#
      • 1...b4
        • 2.Sb3#
        • 2.Qc4#
      • 1...dxc6!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qb4#
      • 1...Bxd5
        • 2.Sb3#
      • 1...Sxd5
        • 2.Bxe3#
      • 1...Qc5
        • 2.Qxc5#
      • 1...b4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • B(h);XS(J)::S(G)
    • B(l);N_GUARD::QAB(I),XB(l)
    • S(k);XQ(I)::B(D),XS(c)
    • S(k);XR(K)::B(D),XS(c)
    • S(k);::B(D),XS(c)
  • Tries
    • Try
      • Q(I);XB(h)
      • Threat
        • DUALS(2)
      • Vars
        • S(k);XQ(I)::B(D),XS(c)
        • Q(i);N_GUARD::QAB1(I),XQ(i)
      • Refutation
        • P(j);XQ(I)
  • Actual
    • Q(I);
    • Threat
      • QAR2(I)
    • Vars
      • B(h);P_PINB(E),P_SPINB(h),XP(H)::S(G)
      • S(k);XP(H)::B(D),XS(c)
      • Q(i);N_GUARD::QAB1(I),XQ(i)
      • P(e);::QAR2(I),XP(e)
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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).