MESON Chess Problem Database

Problem Display
PID: 266403 (KbNqn2B/1Prk4/1p3P2/R6R/1P4P1/3B1N2/3Q4/3nr3 w - - 0 1)

Reddmann, Hauke

Schach, 2022

KbNqn2B/1Prk4/1p3P2/R6R/1P4P1/3B1N2/3Q4/3nr3

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Bb5#
    • 1...Re6
      • 2.Bb5#
  • Tries
    • 1.Se5+?
      • 1...Ke6
        • 2.Bf5#
      • 1...Rxe5!
    • 1.Bb1+?
      • 1...Kc6
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Bf1+?
      • 1...Kc6
        • 2.Bb5#
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Bc2+?
      • 1...Kc6
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Be2+?
      • 1...Kc6
        • 2.Se5#
        • 2.Bb5#
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Bc4+?
      • 1...Kc6
        • 2.Bb5#
        • 2.b5#
      • 1...Sd6!
    • 1.Be4+?
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Ba6+?
      • 1...Kc6
        • 2.Bb5#
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Bh7+?
      • 1...Kc6
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
    • 1.Rhd5+?
      • 1...Kc6
        • 2.Sd4#
        • 2.Bb5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6!
  • Keys
    • 1.Bg6+!
      • 1...Kc6
        • 2.b5#
      • 1...Ke6
        • 2.Sg5#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(e);N_GUARD,S_FLIGHT::B(B)
    • R(b);SBLOCK::QAR(A)+B(B),DCHECK
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(e);S_FLIGHT::B(B)
      • Refutation
        • R(b);XS(C)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::P(D)
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::P(D)
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::P(D)
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • R(G);CHECK
      • Vars
        • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • Refutation
        • S(h);P_SPINS(h)
  • Actual
    • B(B);CHECK
    • Vars
      • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::P(D)
      • K(e);N_GUARD,S_CUTS(h),S_FLIGHT::S(C)
      • S(h);N_GUARD,P_SPINS(h)::QAR1(A),XS(h)
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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).