MESON Chess Problem Database

Problem Display
PID: 158083 (8/7N/6r1/4pk1P/3Rp3/1B6/Q5nN/2B4K w - - 0 1)

Tatalin, J

Comm., Novi Sad Olympic Ty., 1990

8/7N/6r1/4pk1P/3Rp3/1B6/Q5nN/2B4K

#2

8 + 5

4901 Best Problems 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Be6#
    • 1...Rg4
      • 2.Be6#
    • 1...Rg5
      • 2.Be6#
    • 1...Re6
      • 2.Bxe6#
    • 1...Rg7
      • 2.Be6#
    • 1...Rg8
      • 2.Be6#
    • 1...Se3
      • 2.Qf2#
    • 1...exd4
      • 2.Qa5#
  • Tries
    • 1.Bc2?
      • threat
        • 2.Bxe4#
      • 1...exd4
        • 2.Qd5#
      • 1...Rg4
        • 2.Qf7#
      • 1...Se3!
    • 1.Qe2?
      • threat
        • 2.Qxe4#
      • 1...exd4
        • 2.Qb5#
      • 1...Se3
        • 2.Qf2#
      • 1...Rg4
        • 2.Qxg4#
      • 1...e3!
    • 1.Qa8?
      • threat
        • 2.Qxe4#
      • 1...exd4
        • 2.Qd5#
        • 2.Qa5#
      • 1...Rg4
        • 2.Qc8#
        • 2.Qf8#
      • 1...e3
        • 2.Qe4#
      • 1...Rc6!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qxe4#
      • 1...exd4
        • 2.Qc5#
      • 1...Rg4
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::B(E)
    • R(e);N_GUARD::B(E),XR(e)
    • S(a);N_GUARD::QAR(C)
    • P(c);OGATEB,XR(F)::QAR(C)
  • Tries
    • Try
      • B(E);P_PINP(b)
      • Threat
        • B(E),XP(b)
      • Vars
        • P(c);OGATEB,XR(F)::QAR2(C)
        • R(e);N_GUARD::QAR2(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XP(b)
      • Vars
        • P(c);OGATEB,XR(F)::QAR(C)
        • S(a);N_GUARD::QAR(C)
        • R(e);N_GUARD::QAB1(C),XR(e)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XP(b)
      • Vars
        • P(b);::QAB1(C)
      • Refutation
        • R(e);
  • Actual
    • Q(C);P_PINP(b)
    • Threat
      • QAB1(C),XP(b)
    • Vars
      • P(c);OGATEB,XR(F)::QAR(C)
      • R(e);N_GUARD::QAB(C)
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