MESON Chess Problem Database

Problem Display
PID: 276666 (1Q5B/8/K1pRPn2/b1k5/p7/1n1P4/B2P4/8 w - - 0 1)

Tarnawiecki, Antonio

Phenix, 2023

1Q5B/8/K1pRPn2/b1k5/p7/1n1P4/B2P4/8

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.d4#
    • 1...Sc1
      • 2.d4#
    • 1...Sxd2
      • 2.d4#
  • Tries
    • 1.Rxc6+?
      • 1...Kd4
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxc6!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qd6#
      • 1...Kxd4
        • 2.Qd6#
      • 1...Sxd4
        • 2.Qf8#
      • 1...Bc7
        • 2.Qb4#
      • 1...Se4
        • 2.Qe5#
      • 1...Sd5
        • 2.Rc4#
      • 1...Se8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::P(C)
    • S(a);N_GUARD,XP(B)::P(C)
  • Tries
    • Try
      • R(E);CHECK,XP(e)
      • Vars
        • K(d);P_SPINS(f),S_FLIGHT::QAR2(G)
        • K(d);P-FLIGHT,P_SPINS(a)::QAR1(G)
      • Refutation
        • K(d);P-FLIGHT,XR(E)
  • Actual
    • R(E);
    • Threat
      • QAB1(G)
    • Vars
      • K(d);P_SPINS(f),S_FLIGHT,XR(E)::QAR2(G)
      • S(a);SBLOCK,XR(E)::QAB(G)
      • B(c);N_GUARD::QAB1(G)
      • S(f);N_GUARD::QAR2(G)
      • S(f);SBLOCK::R1(E)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).