MESON Chess Problem Database

Problem Display
PID: 186266 (7q/5Qp1/1p5p/b3Np1B/1nN1k3/1P2P3/1P2p2P/1b2n2K w - - 0 1)

Kupper, Josef

idee & form, 2016

7q/5Qp1/1p5p/b3Np1B/1nN1k3/1P2P3/1P2p2P/1b2n2K

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sec2
      • 2.Bf3#
    • 1...Sg2
      • 2.Bf3#
    • 1...Sed3
      • 2.Bf3#
    • 1...Sf3
      • 2.Bxf3#
    • 1...Sa2
      • 2.Qb7#
    • 1...Sbc2
      • 2.Qb7#
    • 1...Sbd3
      • 2.Qb7#
    • 1...Sa6
      • 2.Qb7#
    • 1...f4
      • 2.Bg6#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sf2#
      • 1...Kxd3
        • 2.Qxf5#
      • 1...Bxd3
        • 2.Qe6#
      • 1...Sbxd3
        • 2.Qb7#
      • 1...Sexd3!
    • 1.Qb7+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sd5!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf2#
      • 1...Kd3
        • 2.Qxf5#
      • 1...Kf3
        • 2.Sd2#
      • 1...fxg4
        • 2.Bg6#
      • 1...Sed3
        • 2.Sd2#
      • 1...Sbd3
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • S(b);N_GUARD::B(H)
    • S(b);N_GUARD::B(H),XS(b)
    • S(d);N_GUARD::QAB(I)
    • P(g);OGATEB::B(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(e);S_FLIGHT,XS(G)::QAB(I),XP(g)
        • B(a);SBLOCK,XS(G)::QAR2(I)
        • S(d);N_GUARD,SBLOCK,XS(G)::QAB(I)
      • Refutation
        • S(b);XS(G)
    • Try
      • Q(I);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB(I),XS(d)
      • Refutation
        • S(d);P_SPINS(d)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(e);S_FLIGHT::QAB(I),XP(g)
      • K(e);P_SPINP(g),S_FLIGHT::S(F)
      • P(g);OGATEB,XS(G)::B(H)
      • S(b);SBLOCK::S(F)
      • S(d);N_GUARD,SBLOCK::QAB(I)
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