MESON Chess Problem Database

Problem Display
PID: 256984 (8/1Kb1n3/1p6/Bk1p1p1R/1PpQp3/P4pN1/1Nb5/8 w - - 0 1)

Mlynka, Karol

Vokal, Stanislav

Variantim, 2021

8/1Kb1n3/1p6/Bk1p1p1R/1PpQp3/P4pN1/1Nb5/8

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.a4#
    • 1...Bd3
      • 2.a4#
    • 1...Bxg3
      • 2.Qxb6#
    • 1...Bf4
      • 2.Qxb6#
    • 1...Be5
      • 2.Qxb6#
    • 1...Bd6
      • 2.Qxb6#
    • 1...Bb8
      • 2.Qxb6#
    • 1...Sc6
      • 2.Qxd5#
    • 1...Sg6
      • 2.Qxd5#
    • 1...Sc8
      • 2.Qxd5#
    • 1...Sg8
      • 2.Qxd5#
    • 1...f4
      • 2.Qxc4#
    • 1...bxa5
      • 2.Qc5#
  • Tries
    • 1.Kxc7?
      • threat
        • 2.Qxb6#
      • 1...Ka6
        • 2.Qxb6#
      • 1...bxa5
        • 2.Qb6#
      • 1...Sc8!
    • 1.Se2?
      • threat
        • 2.Sc3#
      • 1...c3
        • 2.Sxc3#
      • 1...fxe2!
    • 1.Bxb6?
      • threat
        • 2.Qc5#
      • 1...Bxb6
        • 2.Qxb6#
      • 1...Bd6!
    • 1.Rxf5?
      • threat
        • 2.Qxc4#
      • 1...Sxf5
        • 2.Qxd5#
      • 1...Bd3
        • 2.a4#
      • 1...Be5
        • 2.Qxb6#
      • 1...c3
        • 2.Qc4#
      • 1...Bb3!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sc3#
      • 1...Bxe4
        • 2.a4#
      • 1...dxe4
        • 2.Qxc4#
      • 1...fxe4
        • 2.Qxc4#
      • 1...c3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 13
  • Sets
    • B(a);N_GUARD::P(B)
    • B(i);N_GUARD,XS(C)::QAR1(E),XP(h)
    • B(i);N_GUARD::QAR1(E),XP(h)
    • S(j);N_GUARD::QAR2(E),XP(f)
    • P(g);P_SPINP(f)::QAB1(E),XP(c)
    • P(h);N_GUARD,XB(F)::QAR1(E)
  • Tries
    • Try
      • K(H);P-FLIGHT,XB(i)
      • Threat
        • QAR1(E),XP(h)
      • Vars
        • K(e);S_FLIGHT::QAR1(E),XP(h)
        • P(h);XB(F)::QAR1(E)
      • Refutation
        • S(j);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • P(c);::S(C),XP(c)
      • Refutation
        • P(b);XS(C)
    • Try
      • B(F);XP(h)
      • Threat
        • QAR1(E)
      • Vars
        • B(i);OGATE,XB(F)::QAR1(E),XB(i)
      • Refutation
        • B(i);
    • Try
      • R(G);P_PINP(f),XP(g)
      • Threat
        • QAB1(E),XP(c)
      • Vars
        • S(j);N_GUARD,N_SPINP(f),XR(G)::QAR2(E),XP(f)
        • B(a);N_GUARD::P(B)
        • B(i);N_GUARD,N_SPINP(f)::QAR1(E),XP(h)
        • P(c);::QAB1(E)
      • Refutation
        • B(a);
  • Actual
    • S(C);XP(d)
    • Threat
      • S(C)
    • Vars
      • B(a);N_GUARD,XS(C)::P(B)
      • P(f);N_GUARD,P_SPINP(g),XS(C)::QAB1(E),XP(c)
      • P(g);P_SPINP(f),XS(C)::QAB1(E),XP(c)
      • P(c);::S(C),XP(c)
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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).