MESON Chess Problem Database

Problem Display
PID: 107779 (7Q/4RBn1/2Nr2p1/3pNkn1/6p1/3K1p1p/8/2B5 w - - 0 1)

Brabec, Juraj

Slov.okruz.sutaz, 1962

7Q/4RBn1/2Nr2p1/3pNkn1/6p1/3K1p1p/8/2B5

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sd4#
    • 1...Sh5
      • 2.Sd4#
    • 1...Se6
      • 2.Bxg6#
    • 1...Se8
      • 2.Sd4#
  • Tries
    • 1.Bxg6+?
      • 1...Kf6
        • 2.Qxg7#
      • 1...Rxg6!
    • 1.Qh4?
      • threat
        • 2.Qxg5#
      • 1...Kf6
        • 2.Qxg5#
      • 1...Sxf7
        • 2.Sd4#
      • 1...Se4
        • 2.Sd4#
      • 1...S5e6
        • 2.Bxg6#
      • 1...Sh7
        • 2.Sd4#
      • 1...S7e6!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qxg5#
      • 1...Kf6
        • 2.Qxg5#
        • 2.Qxg6#
      • 1...Sxf7
        • 2.Qf4#
      • 1...Se4
        • 2.Qf4#
      • 1...S5e6
        • 2.Qxg6#
      • 1...Sh7
        • 2.Qf4#
      • 1...S7e6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(g);SBLOCK::S(D)
    • S(i);::S(D)
    • S(i);S_CUTR(g)::B(F),XP(h)
  • Tries
    • Try
      • B(F);CHECK,XP(h)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(i)::QAB1(G),XS(i)
      • Refutation
        • R(g);XB(F)
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XS(f)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(f)::QAB1(G),XS(f)
        • S(f);XB(F)::S(D)
        • S(f);::S(D)
        • S(f);S_CUTR(g)::B(F),XP(h)
      • Refutation
        • S(i);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G),XS(f)
    • Vars
      • S(f);OGATE,XB(F)::QAR1(G)
      • S(f);OGATE::QAR1(G)
      • S(f);S_CUTR(g)::QAB1(G),XP(h)
      • S(i);S_CUTR(g)::QAB1(G),XP(h)
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