MESON Chess Problem Database

Problem Display
PID: 150483 (1q6/3PrpPn/2PNkPpK/R3P1p1/3R4/np1Q3N/bB4r1/7B w - - 0 1)

Stojnic, Dragan

1st Prize, Hirschenson-60 JT, 2003

1q6/3PrpPn/2PNkPpK/R3P1p1/3R4/np1Q3N/bB4r1/7B

#2

13 + 11

15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6
      • 2.Rxd6#
    • 1...Qa7
      • 2.d8S#
    • 1...Qb4
      • 2.d8S#
    • 1...Qb7
      • 2.d8S#
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...g4
      • 2.Sf4#
  • Tries
    • 1.Re4?
      • threat
        • 2.Qd5#
      • 1...Qxd6
        • 2.exd6#
      • 1...Sxf6
        • 2.exf6#
      • 1...Qb5
        • 2.d8S#
      • 1...Sb5
        • 2.Qc4#
      • 1...Rd2!
    • 1.Rg4?
      • threat
        • 2.Qd5#
      • 1...Sxf6
        • 2.Sxg5#
      • 1...Qb5
        • 2.d8S#
      • 1...Rd2
        • 2.Bd5#
      • 1...Sb5
        • 2.Qc4#
      • 1...Qxd6!
    • 1.Qe4?
      • threat
        • 2.Qd5#
      • 1...Qxd6
        • 2.Rxd6#
      • 1...Qb5
        • 2.d8S#
      • 1...Sxf6!
    • 1.Qf3?
      • threat
        • 2.Qd5#
      • 1...Qxd6
        • 2.Rxd6#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Qb5!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qd5#
      • 1...Qxd6
        • 2.Qxd6#
      • 1...Sxf6
        • 2.Rxf6#
      • 1...Qb5
        • 2.d8S#
      • 1...Rd2
        • 2.Bd5#
      • 1...Sb5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(k);OGATE,XS(I)::R1(E),XQ(k)
    • Q(k);N_GUARD::P=S
    • S(c);N_GUARD::QAB(C)
    • S(c);N_GUARD::QAB(C),XS(c)
    • P(e);N_GUARD::S(D)
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB1(C)
      • Vars
        • Q(k);OGATE,XS(I)::R(E)+P(G),XQ(k)
        • S(j);OGATE,XP(J)::R(E)+P(G),XS(j)
        • Q(k);N_GUARD::P=S
        • S(c);N_GUARD::QAB(C)
      • Refutation
        • R(b);
    • Try
      • R(E);
      • Threat
        • QAB1(C)
      • Vars
        • S(j);N_GUARD,XP(J)::S(D),XP(e)
        • Q(k);N_GUARD::P=S
        • R(b);OGATE::B(A)
        • S(c);N_GUARD::QAB(C)
      • Refutation
        • Q(k);XS(I)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • Q(k);OGATE,XS(I)::R1(E),XQ(k)
        • Q(k);N_GUARD::P=S
      • Refutation
        • S(j);XP(J)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • Q(k);OGATE,XS(I)::R1(E),XQ(k)
        • S(j);OGATE,XP(J)::QAR1(C),XS(j)
      • Refutation
        • Q(k);
  • Actual
    • R(E);
    • Threat
      • QAB1(C)
    • Vars
      • Q(k);OGATE,XS(I)::QAR1(C),XQ(k)
      • S(j);OGATE,XP(J)::R1(E),XS(j)
      • Q(k);N_GUARD::P=S
      • R(b);OGATE::B(A)
      • S(c);N_GUARD::QAB(C)
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