MESON Chess Problem Database

Problem Display
PID: 207140 (n7/3N3n/1p1Q1p2/3p4/2pkp3/K2p4/3P4/8 w - - 0 1)

Chernikh, Vassily

Zadachi i Etyudi, 2018

n7/3N3n/1p1Q1p2/3p4/2pkp3/K2p4/3P4/8

#2

4 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Qxf6#
    • 1...Sf8
      • 2.Qxf6#
    • 1...Sc7
      • 2.Qxb6#
    • 1...c3
      • 2.Qb4#
    • 1...e3
      • 2.Qf4#
    • 1...b5
      • 2.Qc5#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Kb2?
      • 1...e3
        • 2.Qf4#
      • 1...Sg5
        • 2.Qxf6#
      • 1...Sf8
        • 2.Qxf6#
      • 1...Sc7
        • 2.Qxb6#
      • 1...b5
        • 2.Qc5#
      • 1...f5
        • 2.Qe5#
      • 1...c3+!
    • 1.Ka4?
      • 1...c3
        • 2.Qb4#
      • 1...e3
        • 2.Qf4#
      • 1...Sg5
        • 2.Qxf6#
      • 1...Sf8
        • 2.Qxf6#
      • 1...Sc7
        • 2.Qxb6#
      • 1...f5
        • 2.Qe5#
      • 1...b5+!
    • 1.Kb4?
      • 1...e3
        • 2.Qf4#
      • 1...Sg5
        • 2.Qxf6#
      • 1...Sf8
        • 2.Qxf6#
      • 1...Sc7
        • 2.Qxb6#
      • 1...b5
        • 2.Qc5#
      • 1...f5
        • 2.Qe5#
      • 1...c3!
    • 1.Qg3?
      • threat
        • 2.Qe3#
      • 1...e3
        • 2.Qf4#
        • 2.Qh4#
        • 2.Qxe3#
        • 2.Qg4#
      • 1...c3!
    • 1.Qe7?
      • 1...c3
        • 2.Qb4#
      • 1...Sg5
        • 2.Qxf6#
      • 1...Sf8
        • 2.Qxf6#
      • 1...e3
        • 2.Qxe3#
      • 1...b5
        • 2.Qc5#
      • 1...f5
        • 2.Qe5#
      • 1...Sc7!
  • Keys
    • 1.Ka2!
      • 1...c3
        • 2.Qb4#
      • 1...e3
        • 2.Qf4#
      • 1...Sg5
        • 2.Qxf6#
      • 1...Sf8
        • 2.Qxf6#
      • 1...Sc7
        • 2.Qxb6#
      • 1...b5
        • 2.Qc5#
      • 1...f5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::QAB(C),XP(g)
    • S(i);N_GUARD::QAB(C),XP(f)
    • P(b);OGATEB::QAR2(C)
    • P(d);OGATEB::QAR2(C)
    • P(f);N_GUARD::QAB1(C)
    • P(g);N_GUARD::QAB1(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(d);OGATEB::QAR2(C)
        • S(h);N_GUARD::QAB(C),XP(g)
        • S(i);N_GUARD::QAB(C),XP(f)
        • P(f);N_GUARD::QAB1(C)
        • P(g);N_GUARD::QAB1(C)
      • Refutation
        • P(b);CHECK
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);OGATEB::QAR2(C)
        • P(d);OGATEB::QAR2(C)
        • S(h);N_GUARD::QAB(C),XP(g)
        • S(i);N_GUARD::QAB(C),XP(f)
        • P(g);N_GUARD::QAB1(C)
      • Refutation
        • P(f);CHECK
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(d);OGATEB::QAR2(C)
        • S(h);N_GUARD::QAB(C),XP(g)
        • S(i);N_GUARD::QAB(C),XP(f)
        • P(f);N_GUARD::QAB1(C)
        • P(g);N_GUARD::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);N_PINP(e)
      • Threat
        • QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);N_PINP(e)
      • Vars
        • P(b);OGATEB::QAR2(C)
        • S(h);N_GUARD::QAB(C),XP(g)
        • P(d);OGATE::QAB1(C),XP(d)
        • P(f);N_GUARD::QAB1(C)
        • P(g);N_GUARD::QAB1(C)
      • Refutation
        • S(i);
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • P(b);OGATEB::QAR2(C)
      • P(d);OGATEB::QAR2(C)
      • S(h);N_GUARD::QAB(C),XP(g)
      • S(i);N_GUARD::QAB(C),XP(f)
      • P(f);N_GUARD::QAB1(C)
      • P(g);N_GUARD::QAB1(C)
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).