MESON Chess Problem Database

Problem Display
PID: 266848 (6K1/8/1N3p2/1B3k2/5PN1/B3P3/2P3P1/5Q2 w - - 0 1)

Koshel, Mikhail Igorevich

Kudesnik, 2022

6K1/8/1N3p2/1B3k2/5PN1/B3P3/2P3P1/5Q2

#2

10 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bd3#
      • 2.Qd3#
    • 1...Ke6
      • 2.Bd7#
      • 2.f5#
  • Tries
    • 1.Kf7?
      • 1...Ke4
        • 2.Bd3#
        • 2.Qd3#
      • 1...Kxg4!
    • 1.Kg7?
      • 1...Ke4
        • 2.Bd3#
        • 2.Qd3#
      • 1...Ke6
        • 2.Bd7#
        • 2.f5#
      • 1...Kxg4!
    • 1.Sf2?
      • 1...Ke6
        • 2.Bd7#
      • 1...Kg6!
    • 1.Sh2?
      • 1...Ke4
        • 2.Qd3#
      • 1...Ke6
        • 2.Bd7#
      • 1...Kg6!
    • 1.Se5?
      • 1...Ke4
        • 2.Qd3#
      • 1...Ke6
        • 2.Bd7#
      • 1...fxe5!
    • 1.Sh6+?
      • 1...Ke4
        • 2.Qd3#
        • 2.Qf3#
      • 1...Ke6
        • 2.Bc4#
        • 2.Bd7#
        • 2.Qc4#
      • 1...Kg6!
    • 1.Be2?
      • 1...Ke4
        • 2.Bd3#
      • 1...Ke6
        • 2.f5#
      • 1...Kg6!
    • 1.Bd3+?
      • 1...Ke6
        • 2.f5#
      • 1...Kxg4!
    • 1.Bd7+?
      • 1...Ke4
        • 2.Qd3#
        • 2.Qc4#
        • 2.Qf3#
      • 1...Kg6!
    • 1.Be8?
      • 1...Ke4
        • 2.Qd3#
      • 1...Ke6
        • 2.Bd7#
        • 2.f5#
      • 1...Kxg4!
    • 1.Qe2?
      • 1...Ke4
        • 2.Bd3#
        • 2.Qd3#
      • 1...Ke6
        • 2.Bd7#
      • 1...Kg6!
    • 1.Qd3+?
      • 1...Ke6
        • 2.Bc4#
        • 2.Bd7#
        • 2.Qe4#
        • 2.Qd5#
        • 2.Qd7#
        • 2.f5#
      • 1...Kxg4!
    • 1.Qd1?
      • 1...Ke4
        • 2.Bd3#
        • 2.Qd3#
        • 2.Qd5#
      • 1...Ke6
        • 2.Bd7#
        • 2.Qd5#
        • 2.Qd7#
      • 1...Kg6!
    • 1.Qf3?
      • 1...Ke6
        • 2.Bd7#
        • 2.Qe4#
        • 2.Qd5#
        • 2.f5#
      • 1...Kg6!
  • Keys
    • 1.Qh1!
      • 1...Ke4
        • 2.Bd3#
      • 1...Kxg4
        • 2.Qh3#
      • 1...Ke6
        • 2.Bd7#
      • 1...Kg6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • K(J);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • S(G);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(G);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
        • K(a);N_GUARD,S_FLIGHT::B(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(G);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
        • K(a);N_GUARD,S_FLIGHT::B(H)
      • Refutation
        • P(b);XS(G)
    • Try
      • S(G);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(H);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(H)
        • K(a);OGATE,S_FLIGHT::P(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(H);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::P(F)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • B(H);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(H);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(G)
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(H)
      • K(a);OGATEB,S_FLIGHT,XS(G)::QAB1(A)
      • K(a);N_GUARD,S_FLIGHT::QAB1(A)
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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).