MESON Chess Problem Database

Problem Display
PID: 51728 (q1R5/p3B3/2nPQ3/8/K1Nk2N1/pB2p3/r1npP3/2R2r2 w - - 0 1)

Gavrilovski, Zoran

3rd Place, Liga Problemista, 1998-1999

q1R5/p3B3/2nPQ3/8/K1Nk2N1/pB2p3/r1npP3/2R2r2

#2

10 + 10

5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qxe3#
    • 1...Kc5
      • 2.Qe5#
    • 1...Sb4
      • 2.Qe5#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sxe7
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
    • 1...Sd8
      • 2.Qe5#
  • Tries
    • 1.Sb2?
      • threat
        • 2.Qc4#
      • 1...Kc3
        • 2.Qe5#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...axb2+!
    • 1.Sxd2?
      • threat
        • 2.Qc4#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Kc3!
    • 1.Sxa3?
      • threat
        • 2.Qc4#
      • 1...Kc3
        • 2.Qe5#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Sxa3
        • 2.Qd5#
        • 2.Qxe3#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Rxa3+!
    • 1.Scxe3?
      • threat
        • 2.Qc4#
      • 1...Kc3
        • 2.Qe5#
      • 1...Sxe3
        • 2.Qxe3#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Kc5!
    • 1.Sb6?
      • threat
        • 2.Qc4#
      • 1...Kc3
        • 2.Qe5#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...axb6+!
    • 1.Bf6+?
      • 1...Kc5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Rxf6!
    • 1.Qd5+?
      • 1...Kc3
        • 2.Qd3#
      • 1...Kxd5!
    • 1.Qxe3+?
      • 1...Kd5
        • 2.Sb2#
        • 2.Sxd2#
        • 2.Sxa3#
        • 2.Sa5#
        • 2.Sce5#
        • 2.Sb6#
      • 1...Sxe3!
    • 1.Qe4+?
      • 1...Kc3
        • 2.Qd3#
        • 2.Qxe3#
      • 1...Kc5
        • 2.Qe5#
        • 2.d7#
      • 1...Kxe4!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Qc4#
      • 1...Kc3
        • 2.Qe5#
      • 1...Kc5
        • 2.Qxe3#
      • 1...Sxa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#

Anticipated by 178775(1952)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • K(g);P_SPINS(c),S_FLIGHT::QAR2(H),XP(f)
    • K(g);P_SPINS(h),S_FLIGHT::QAR2(H)
    • S(h);N_GUARD::QAB1(H)
    • S(h);N_GUARD::QAB1(H),XS(h)
    • S(h);N_GUARD,XB(I)::QAB1(H)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(H)
      • Vars
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H)
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H),XP(f)
        • S(h);N_GUARD::QAB1(H)
        • S(h);N_GUARD::QAB1(H),XS(h)
      • Refutation
        • P(e);CHECK,XS(E)
    • Try
      • S(E);XP(d)
      • Threat
        • QAR1(H)
      • Vars
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H),XP(f)
        • S(h);N_GUARD::QAB1(H)
        • S(h);N_GUARD::QAB1(H),XS(h)
      • Refutation
        • K(g);P_SPINS(c),S_FLIGHT
    • Try
      • S(E);P_SPINS(E),XP(e)
      • Threat
        • QAR1(H)
      • Vars
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H)
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H),XP(f)
        • S(h);N_GUARD::QAB1(H)
        • S(h);N_GUARD::QAB1(H),XS(h)
      • Refutation
        • R(b);CHECK,XS(E)
    • Try
      • S(E);XP(f)
      • Threat
        • QAR1(H)
      • Vars
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H)
        • S(c);OGATE,XS(E)::QAB1(H),XS(c)
        • S(h);N_GUARD::QAB1(H)
        • S(h);N_GUARD::QAB1(H),XS(h)
      • Refutation
        • K(g);P_SPINS(c),S_FLIGHT
    • Try
      • S(E);
      • Threat
        • QAR1(H)
      • Vars
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H)
        • K(g);P_SPINS(c),S_FLIGHT::QAB(H),XP(f)
        • S(h);N_GUARD::QAB1(H)
        • S(h);N_GUARD::QAB1(H),XS(h)
      • Refutation
        • P(i);CHECK,XS(E)
    • Try
      • B(I);CHECK
      • Vars
        • K(g);P_SPINS(h),S_FLIGHT::QAR2(H)
        • S(h);N_GUARD,P_SPINS(h)::QAB1(H),XS(h)
      • Refutation
        • R(a);XB(I)
    • Try
      • Q(H);CHECK
      • Vars
        • K(g);OGATE,P_SPINS(c),S_FLIGHT::QAR1(H)
      • Refutation
        • K(g);P-FLIGHT,XQ(H)
    • Try
      • Q(H);CHECK,XP(f)
      • Refutation
        • S(c);XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • K(g);P-FLIGHT,XQ(H)
  • Actual
    • S(E);
    • Threat
      • QAR1(H)
    • Vars
      • K(g);P_SPINS(c),S_FLIGHT::QAB(H)
      • K(g);P_SPINS(c),S_FLIGHT::QAB(H),XP(f)
      • S(h);N_GUARD,XS(E)::QAB1(H)
      • S(h);N_GUARD::QAB1(H),XS(h)
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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).