MESON Chess Problem Database

Problem Display
PID: 7847 (5R2/3P2n1/1pQ1pP2/2p1kN2/4N1bP/3PPpP1/1n5B/1K2b3 w - - 0 1)

Velimirovic, Milan

1st Prize, Mat Plus, 1994

5R2/3P2n1/1pQ1pP2/2p1kN2/4N1bP/3PPpP1/1n5B/1K2b3

#2

12 + 9

5416 FIDE Album (1992-1994) (Annexe) 2003
5929 Mat Plus Special Issue 2006
56 The Problemist 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5
      • 2.Qd6#
    • 1...c4
      • 2.Qb5#
    • 1...b5
      • 2.Qxc5#
    • 1...exf5
      • 2.Qd6#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Qe4#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Bxf5
        • 2.g4#
      • 1...Sxf5
        • 2.Sxg4#
      • 1...exf5!
    • 1.Sc3?
      • threat
        • 2.Qe4#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Bxf5
        • 2.Qc7#
      • 1...exf5
        • 2.Qd5#
      • 1...Sxf5!
    • 1.Sxc5?
      • threat
        • 2.Qe4#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Sxf5
        • 2.Qxe6#
      • 1...exf5
        • 2.d4#
      • 1...Bxf5!
    • 1.Qc7+?
      • 1...Kd5
        • 2.Se7#
        • 2.Qd6#
        • 2.d8Q#
        • 2.d8R#
      • 1...Kxf5!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe4#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Bxf5
        • 2.Sxf3#
      • 1...Sxf5
        • 2.Qxe6#
      • 1...exf5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(d);SBLOCK,XS(H)::QAB1(I)
    • P(e);OGATEB::QAR(I)
    • P(g);N_GUARD::QAR2(I),XP(e)
    • P(h);SBLOCK,XS(H)::QAB1(I)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(I)
      • Vars
        • K(f);P-FLIGHT,XS(H)::QAB1(I)
        • B(d);OGATE,P_PINP(C),XS(H)::B(B)+P(E)
        • S(i);SBLOCK,XS(H)::S(F),XB(d)
      • Refutation
        • P(h);XS(H)
    • Try
      • S(F);
      • Threat
        • QAR1(I)
      • Vars
        • K(f);P-FLIGHT,XS(H)::QAB1(I)
        • B(d);P_PINP(C),SBLOCK,XS(H)::QAB(I)
        • P(h);N_GUARD,SBLOCK,XS(H)::QAR1(I)
      • Refutation
        • S(i);XS(H)
    • Try
      • S(F);XP(e)
      • Threat
        • QAR1(I)
      • Vars
        • K(f);P-FLIGHT,XS(H)::QAB1(I)
        • S(i);N_GUARD,XS(H)::QAR1(I),XP(h)
        • P(h);SBLOCK,XS(H)::P(C)
      • Refutation
        • B(d);P_PINP(C),XS(H)
    • Try
      • Q(I);CHECK
      • Refutation
        • K(f);P-FLIGHT,XS(H)
  • Actual
    • S(F);
    • Threat
      • QAR1(I)
    • Vars
      • K(f);P-FLIGHT,XS(H)::QAB1(I)
      • B(d);N_GUARD,P_PINP(C),SBLOCK,XS(H)::S(F),XP(c)
      • S(i);N_GUARD,XS(H)::QAR1(I),XP(h)
      • P(h);SBLOCK,XS(H)::S(F)
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