MESON Chess Problem Database

Problem Display
PID: 10545 (8/5p2/5P1R/1pN1P2P/1B1Npk2/p1P5/B4pQp/5Kbr w - - 0 1)

Nesic, Milivoj S

3rd Prize, Shakhmaty v SSSR, 1965

8/5p2/5P1R/1pN1P2P/1B1Npk2/p1P5/B4pQp/5Kbr

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qg5#
    • 1...Kxe5
      • 2.Qg3#
    • 1...e3
      • 2.Sd3#
  • Tries
    • 1.Scb3?
      • 1...Ke3
        • 2.Qg3#
      • 1...Kxe5
        • 2.Qg5#
      • 1...e3!
    • 1.Bb3?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
      • 1...a2!
    • 1.Bxf7?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
      • 1...a2!
    • 1.Bxa3?
      • 1...Ke3
        • 2.Bc1#
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
      • 1...b4!
    • 1.Ba5?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Bc7#
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
      • 1...b4!
    • 1.Rg6?
      • threat
        • 2.Qxe4#
        • 2.Qg3#
        • 2.Qg5#
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
        • 2.Qe4#
        • 2.Qg3#
        • 2.Qg5#
      • 1...fxg6!
    • 1.Rh7?
      • 1...Ke3
        • 2.Qg5#
      • 1...e3
        • 2.Sd3#
      • 1...Kxe5!
    • 1.Rh8?
      • 1...Ke3
        • 2.Qg5#
      • 1...e3
        • 2.Sd3#
      • 1...Kxe5!
    • 1.Qg4+?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Sd7#
        • 2.Qg3#
      • 1...Kxg4!
    • 1.Qg6?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
      • 1...fxg6!
    • 1.Qg7?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
      • 1...e3!
    • 1.Qg8?
      • 1...Ke3
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qg3#
        • 2.Qb8#
      • 1...e3!
    • 1.e6?
      • 1...Ke3
        • 2.Qg5#
      • 1...Ke5
        • 2.Qg3#
      • 1...e3
        • 2.Sd3#
      • 1...fxe6!
  • Keys
    • 1.Sxe4!
      • 1...Ke3
        • 2.Qf3#
      • 1...Kxe5
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(g);S_FLIGHT::QAB(C)
    • K(g);S_FLIGHT,XP(H)::QAB(C)
    • P(f);N_GUARD,SBLOCK::S(G)
  • Tries
    • Try
      • S(G);
      • Vars
        • K(g);S_FLIGHT::QAR2(C)
        • K(g);S_FLIGHT,XP(H)::QAR2(C)
      • Refutation
        • P(f);
    • Try
      • B(B);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • K(g);S_FLIGHT,XP(H)::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(e);
    • Try
      • B(B);XP(i)
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • K(g);S_FLIGHT,XP(H)::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(e);
    • Try
      • B(E);XP(e)
      • Vars
        • K(g);S_FLIGHT,XP(H)::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(h);
    • Try
      • B(E);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(h);
    • Try
      • R(K);
      • Threat
        • DUALS(3)
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • K(g);S_FLIGHT,XP(H)::QAB(C)
      • Refutation
        • P(i);XR(K)
    • Try
      • R(K);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • K(g);S_FLIGHT,XP(H)
    • Try
      • R(K);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • K(g);S_FLIGHT,XP(H)
    • Try
      • Q(C);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB(C)
      • Refutation
        • K(g);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • K(g);S_FLIGHT,XP(H)::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(i);XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • K(g);S_FLIGHT,XP(H)::QAB(C)
      • Refutation
        • P(f);
    • Try
      • Q(C);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
      • Refutation
        • P(f);
    • Try
      • P(H);
      • Vars
        • K(g);S_FLIGHT::QAB(C)
        • P(f);N_GUARD,SBLOCK::S(G)
      • Refutation
        • P(i);XP(H)
  • Actual
    • S(G);XP(f)
    • Vars
      • K(g);S_FLIGHT::QAR1(C)
      • K(g);OGATEB,S_FLIGHT,XP(H)::B(E)
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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).