MESON Chess Problem Database

Problem Display
PID: 162559 (1b2BB2/2p4b/8/2pkn1N1/R2N4/3P4/7Q/7K w - - 0 1)

Thomas, Georg

Magasinet, 1939

(First published on Sun May 7 1939)

1b2BB2/2p4b/8/2pkn1N1/R2N4/3P4/7Q/7K

#2

8 + 6

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Be4+
      • 2.dxe4#
    • 1...Sxd3
      • 2.Bc6#
      • 2.Bf7#
    • 1...Sf3
      • 2.Bc6#
      • 2.Bf7#
    • 1...Sg4
      • 2.Bc6#
      • 2.Bf7#
    • 1...Sc6
      • 2.Bxc6#
      • 2.Bf7#
    • 1...Sg6
      • 2.Bc6#
      • 2.Bf7#
    • 1...Sd7
      • 2.Bf7#
    • 1...Sf7
      • 2.Bc6#
      • 2.Bxf7#
  • Tries
    • 1.Sgf3?
      • threat
        • 2.Qxe5#
      • 1...Sxd3
        • 2.Bc6#
      • 1...Sxf3
        • 2.Bc6#
        • 2.Bf7#
      • 1...Sc4
        • 2.Bc6#
        • 2.Bf7#
      • 1...Sg4
        • 2.Bc6#
        • 2.Bf7#
      • 1...Sc6
        • 2.Bxc6#
        • 2.Bf7#
      • 1...Sg6
        • 2.Bc6#
        • 2.Bf7#
      • 1...Sd7
        • 2.Bf7#
      • 1...Sf7
        • 2.Bc6#
        • 2.Bxf7#
      • 1...c6!
    • 1.Qg2+?
      • 1...Be4
        • 2.Qxe4#
        • 2.dxe4#
      • 1...Sf3!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qxe5#
      • 1...Be4+
        • 2.dxe4#
      • 1...Sxd3
        • 2.Se7#
      • 1...Sxc6
        • 2.Bf7#
      • 1...Sd7
        • 2.Se7#
      • 1...Sf3
        • 2.Se7#
      • 1...Sc4
        • 2.dxc4#
      • 1...Sg4
        • 2.Se7#
      • 1...Sg6
        • 2.Qg2#
      • 1...Sf7
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(e);CHECK,OGATE::P(C),XB(e)
    • S(c);N_GUARD::B(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(B),XS(c)
      • Vars
        • S(c);N_GUARD,XP(C)::B(G)
        • S(c);N_GUARD::B(G)
      • Refutation
        • P(d);
    • Try
      • Q(B);CHECK
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • S(E);
    • Threat
      • QAR1(B),XS(c)
    • Vars
      • B(e);CHECK,OGATE::P(C),XB(e)
      • S(c);XP(C)::S(E)
      • S(c);N_GUARD,SBLOCK,XS(E)::B(G)
      • S(c);::S(E)
      • S(c);OGATE::P(C),XS(c)
      • S(c);N_GUARD,S_CUTB(e)::QAB(B)
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