MESON Chess Problem Database

Problem Display
PID: 47653 (7Q/1p1p3p/1KNp3r/Bp1p1n2/2k2rN1/2P4R/P1B2p2/1q6 w - - 0 1)

Dittrich, Stefan

Schach, 1988

7Q/1p1p3p/1KNp3r/Bp1p1n2/2k2rN1/2P4R/P1B2p2/1q6

#2

9 + 12

4640 Chess Wizardry: The New ABC of Chess Problems 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Bb3#
      • 2.Bd3#
    • 1...Qc1
      • 2.Bb3#
      • 2.Bd3#
    • 1...Qe1
      • 2.Bb3#
      • 2.Bd3#
    • 1...Qf1
      • 2.Bb3#
    • 1...Qg1
      • 2.Bb3#
      • 2.Bd3#
    • 1...Qh1
      • 2.Bb3#
      • 2.Bd3#
    • 1...Qb2
      • 2.Bd3#
    • 1...Qb3
      • 2.Bxb3#
      • 2.Bd3#
      • 2.axb3#
    • 1...Qb4
      • 2.Bd3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sg3
      • 2.Se3#
    • 1...Sd4
      • 2.Se3#
    • 1...Sh4
      • 2.Se3#
    • 1...Se7
      • 2.Se3#
    • 1...Sg7
      • 2.Se3#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qc8#
      • 1...Qxb4
        • 2.Bd3#
      • 1...Se7
        • 2.Se3#
      • 1...Sd4!
    • 1.Sd4?
      • threat
        • 2.Qc8#
      • 1...Sxd4
        • 2.Se3#
      • 1...Se7
        • 2.Se3#
      • 1...Qb4!
    • 1.Sa7?
      • threat
        • 2.Qc8#
      • 1...Qb4
        • 2.Bd3#
      • 1...Sd4
        • 2.Se3#
      • 1...Se7
        • 2.Se3#
      • 1...d4!
    • 1.Sb8?
      • threat
        • 2.Qc8#
      • 1...Qb4
        • 2.Bd3#
      • 1...Sd4
        • 2.Se3#
      • 1...Se7
        • 2.Se3#
      • 1...d4!
    • 1.Qd4+?
      • 1...Sxd4
        • 2.Se3#
      • 1...Rxd4!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qc8#
      • 1...Sxe7
        • 2.Se3#
      • 1...Qb4
        • 2.Bd3#
      • 1...Sd4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::B(B)
    • S(g);N_GUARD::S(E),XS(g)
    • S(g);N_GUARD::S(E)
  • Tries
    • Try
      • S(H);
      • Threat
        • QAR(I)
      • Vars
        • Q(a);N_GUARD,XS(H)::B(B)
        • S(g);N_GUARD::S(E)
      • Refutation
        • S(g);
    • Try
      • S(H);
      • Threat
        • QAR(I)
      • Vars
        • S(g);N_GUARD,XS(H)::S(E)
        • S(g);N_GUARD::S(E)
      • Refutation
        • Q(a);
    • Try
      • S(H);
      • Threat
        • QAR(I)
      • Vars
        • Q(a);N_GUARD::B(B)
        • S(g);N_GUARD::S(E)
      • Refutation
        • P(f);
    • Try
      • S(H);
      • Threat
        • QAR(I)
      • Vars
        • Q(a);N_GUARD::B(B)
        • S(g);N_GUARD::S(E)
      • Refutation
        • P(f);
    • Try
      • Q(I);CHECK
      • Vars
        • S(g);XQ(I)::S(E)
      • Refutation
        • R(d);XQ(I)
  • Actual
    • S(H);
    • Threat
      • QAR(I)
    • Vars
      • S(g);N_GUARD,XS(H)::S(E)
      • Q(a);N_GUARD::B(B)
      • S(g);N_GUARD::S(E)
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