MESON Chess Problem Database

Problem Display
PID: 224188 (2Q1K3/1p6/2np3p/1p4nR/1Pk1pP2/1Np5/PbN1P3/8 w - - 0 1)

Hirschenson, Aaron

Variantim, 2005

2Q1K3/1p6/2np3p/1p4nR/1Pk1pP2/1Np5/PbN1P3/8

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Se3#
    • 1...Sf3
      • 2.Sa5#
    • 1...Sh3
      • 2.Sa5#
    • 1...Se6
      • 2.Sa5#
    • 1...Sf7
      • 2.Sa5#
    • 1...Sh7
      • 2.Sa5#
    • 1...d5
      • 2.Sa5#
    • 1...b6
      • 2.Qxc6#
  • Tries
    • 1.Rxg5?
      • threat
        • 2.Sa5#
      • 1...b6
        • 2.Qxc6#
      • 1...hxg5!
  • Keys
    • 1.Qxb7!
      • threat
        • 2.Qxc6#
      • 1...Kd5
        • 2.Qf7#
      • 1...Sxb4
        • 2.Se3#
      • 1...Se6
        • 2.Qxb5#
      • 1...Sd4
        • 2.Sa5#
      • 1...Sa5
        • 2.Sxa5#
      • 1...Se5
        • 2.Sa5#
      • 1...Sa7
        • 2.Sa5#
      • 1...Se7
        • 2.Sa5#
      • 1...Sb8
        • 2.Sa5#
      • 1...Sd8
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 8
    • REMOVED MATES = 6
  • Sets
    • K(c);N_SPINS(g),P_SPINS(f),S_FLIGHT::S(B)
    • S(f);::S(D)
    • P(h);SBLOCK::S(D)
    • P(j);N_GUARD::QAR2(H),XS(g)
  • Tries
    • Try
      • R(G);XS(f)
      • Threat
        • S(D)
      • Vars
        • P(j);N_GUARD::QAR2(H),XS(g)
      • Refutation
        • P(i);XR(G)
  • Actual
    • Q(H);N_PINS(g),XP(j)
    • Threat
      • QAR2(H),XS(g)
    • Vars
      • K(c);P_SPINS(f),S_FLIGHT::QAB(H)
      • S(g);SBLOCK,XP(E)::S(B)
      • S(f);::QAB1(H),XP(e)
      • S(g);N_GUARD::S(D)
      • S(g);N_GUARD::S(D),XS(g)
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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).