MESON Chess Problem Database

Problem Display
PID: 103290 (6n1/3Q3K/BN3p2/3pk1p1/3pP3/5p2/q3Nb2/2B5 w - - 0 1)

Kuznetsov, Mikhail Pavlovich

Marandiuk, Mikhail Nazarovich

Madarsky Konkurz, 1974

6n1/3Q3K/BN3p2/3pk1p1/3pP3/5p2/q3Nb2/2B5

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qe6#
    • 1...Qb1
      • 2.Qxd5#
    • 1...Qa1
      • 2.Qxd5#
    • 1...Qb2
      • 2.Qxd5#
    • 1...Qc2
      • 2.Qxd5#
    • 1...Qd2
      • 2.Qxd5#
    • 1...Qxe2
      • 2.Qxd5#
    • 1...Qa3
      • 2.Qxd5#
    • 1...Qa4
      • 2.Qxd5#
    • 1...Qxa6
      • 2.Qxd5#
    • 1...Sh6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
  • Tries
    • 1.Kxg8?
      • threat
        • 2.Qe7#
      • 1...Kxe4
        • 2.Qe6#
      • 1...Qa3
        • 2.Qxd5#
      • 1...dxe4+!
    • 1.Sc8?
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qe6#
      • 1...f5
        • 2.Qxf5#
      • 1...Sh6
        • 2.Qe8#
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...dxe4!
    • 1.Bf4+?
      • 1...Kxe4
        • 2.Qe6#
      • 1...gxf4!
    • 1.Bc8?
      • threat
        • 2.Qe6#
      • 1...Kxe4
        • 2.Qf5#
      • 1...dxe4
        • 2.Qc7#
      • 1...Qa7!
    • 1.Qe8+?
      • 1...Se7
        • 2.Qxe7#
      • 1...Kd6!
    • 1.Qd6+?
      • 1...Kxe4
        • 2.Qe6#
      • 1...Kxd6!
    • 1.Qc7+?
      • 1...Ke6
        • 2.Bc8#
      • 1...Kxe4!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qe6#
      • 1...Qxa3
        • 2.Qxd5#
      • 1...dxe4
        • 2.Bd6#
      • 1...f5
        • 2.Qxf5#
      • 1...Sh6
        • 2.Qe8#
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • K(f);P-FLIGHT,XP(C)::QAR2(F)
    • Q(a);N_GUARD,P_PINP(C)::QAR1(F),XP(e)
    • Q(a);N_GUARD::QAR1(F),XP(e)
    • Q(a);N_GUARD,XS(B)::QAR1(F),XP(e)
    • Q(a);N_GUARD,XB(D)::QAR1(F),XP(e)
    • S(i);N_GUARD::QAR2(F)
    • S(i);N_GUARD::QAR2(F),XS(i)
  • Tries
    • Try
      • K(G);S_FLIGHT,XS(i)
      • Threat
        • QAR2(F)
      • Vars
        • K(f);P-FLIGHT,XP(C)::QAR2(F)
        • Q(a);N_GUARD::QAR1(F),XP(e)
      • Refutation
        • P(e);CHECK,XP(C)
    • Try
      • S(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(f);P-FLIGHT,XP(C)::QAR2(F)
        • P(h);::QAR1(F),XP(h)
        • S(i);N_GUARD::QAR2(F),XS(i)
      • Refutation
        • P(e);XP(C)
    • Try
      • B(A);CHECK
      • Vars
        • K(f);P-FLIGHT,XP(C)::QAR2(F)
      • Refutation
        • P(g);XB(A)
    • Try
      • B(D);
      • Threat
        • QAR1(F)
      • Vars
        • K(f);P-FLIGHT,XP(C)::QAB1(F)
        • P(e);SBLOCK,XP(C)::QAB(F)
      • Refutation
        • Q(a);P_PINQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::QAR2(F),XS(i)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(f);P-FLIGHT,XP(C)::QAR2(F)
      • Refutation
        • K(f);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(f);P-FLIGHT::B(D)
      • Refutation
        • K(f);P-FLIGHT,XP(C)
  • Actual
    • B(A);
    • Threat
      • QAR1(F)
    • Vars
      • K(f);P-FLIGHT,XP(C)::QAR2(F)
      • Q(a);N_GUARD,XB(A)::QAR1(F),XP(e)
      • P(e);SBLOCK,XP(C)::B(A)
      • P(h);::QAR1(F),XP(h)
      • S(i);N_GUARD::QAR2(F),XS(i)
HTML5 logo

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).