MESON Chess Problem Database

Problem Display
PID: 119797 (1Q1N3B/8/K2P1P1n/4k1n1/2p1B3/6b1/b2PR1N1/5r2 w - - 0 1)

Feigl, Maximilian

Ystad Allehanda, 1905

1Q1N3B/8/K2P1P1n/4k1n1/2p1B3/6b1/b2PR1N1/5r2

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.f7#
    • 1...Rb1
      • 2.f7#
    • 1...Rc1
      • 2.f7#
    • 1...Rd1
      • 2.f7#
    • 1...Re1
      • 2.f7#
    • 1...Rg1
      • 2.f7#
    • 1...Rh1
      • 2.f7#
    • 1...Bf2
      • 2.f7#
    • 1...Bf4
      • 2.f7#
    • 1...Sf3
      • 2.f7#
    • 1...Se6
      • 2.Sc6#
  • Tries
    • 1.Qb5+?
      • 1...Kd4
        • 2.Sc6#
        • 2.Qd5#
      • 1...Kxd6!
    • 1.Qb6?
      • threat
        • 2.Qc5#
      • 1...c3
        • 2.d4#
      • 1...Bf2
        • 2.f7#
      • 1...Se6!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qc5#
      • 1...Kd4
        • 2.Sc6#
      • 1...c3
        • 2.d4#
      • 1...Bf2
        • 2.f7#
      • 1...Se6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::B(J)+P(G)
    • B(c);S_CUTR(a)::B(J)+P(G)
    • S(f);S_CUTR(a)::B(J)+P(G)
    • S(f);SBLOCK::S(I)
  • Tries
    • Try
      • Q(H);CHECK
      • Refutation
        • K(e);S_FLIGHT,XP(F)
    • Try
      • Q(H);
      • Threat
        • QAR2(H)
      • Vars
        • P(d);N_GUARD::P(A)
        • B(c);S_CUTR(a)::B(J)+P(G)
      • Refutation
        • S(f);
  • Actual
    • Q(H);
    • Threat
      • QAR2(H)
    • Vars
      • K(e);P_SPINP(d),S_FLIGHT::S(I)
      • P(d);N_GUARD::P(A)
      • B(c);S_CUTR(a)::B(J)+P(G)
      • S(f);SBLOCK::S(I)
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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).