MESON Chess Problem Database

Problem Display
PID: 233490 (2b2b2/3pn1p1/2p2k2/2N2PpQ/6p1/K1N2nr1/4R3/1B3R2 w - - 0 1)

Schreckenbach, Michael

Freie Presse, 1988

2b2b2/3pn1p1/2p2k2/2N2PpQ/6p1/K1N2nr1/4R3/1B3R2

#2

8 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Sxd7#
    • 1...Bb7
      • 2.Sxd7#
    • 1...Se5
      • 2.Se4#
    • 1...Sd5
      • 2.Qg6#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sg8
      • 2.Qg6#
  • Tries
    • 1.S3e4+?
      • 1...Kxf5
        • 2.Qxg5#
      • 1...Ke5!
    • 1.Sd5+?
      • 1...Sxd5
        • 2.Qg6#
      • 1...cxd5!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxf8#
      • 1...Sxf5
        • 2.Se4#
      • 1...Se5
        • 2.Se4#
      • 1...Sg6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(j);N_GUARD::S(F),XP(g)
    • S(a);P_PINS(E),SBLOCK::S(F)
    • S(h);N_GUARD,P_PINS(F)::QAR1(H)
    • S(h);N_GUARD,P_PINS(F)::QAR1(H),XS(h)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINP(d),P_SPINS(a),XP(G)::QAR1(H),XP(d)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • S(h);P_PINS(F),XS(E)::QAR1(H)
      • Refutation
        • P(e);XS(E)
  • Actual
    • Q(H);
    • Threat
      • QAR2(H),XB(k)
    • Vars
      • S(h);P_PINS(F),SBLOCK,XP(G)::S(E)
      • S(a);P_PINS(E),SBLOCK::S(F)
      • S(h);N_GUARD,P_PINS(F)::QAR1(H),XS(h)
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