MESON Chess Problem Database

Problem Display
PID: 162290 (4N3/2q1p3/R5N1/1Ppk4/2n2bP1/4P2K/2Qp4/2n5 w - - 0 1)

Thomas, Georg

Nationaltidende, 1940

(First published on Sun Nov 17 1940)

4N3/2q1p3/R5N1/1Ppk4/2n2bP1/4P2K/2Qp4/2n5

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Sxc7#
    • 1...Bh6
      • 2.Sxc7#
    • 1...Sa2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Se5
      • 2.Sxf4#
      • 2.Sxc7#
    • 1...Sd6
      • 2.Sxc7#
    • 1...d1S
      • 2.Qg2#
    • 1...d1R
      • 2.Qg2#
    • 1...e5
      • 2.Sf6#
      • 2.Sxc7#
    • 1...e6
      • 2.Sf6#
  • Tries
    • 1.Sxf4+?
      • 1...Ke5
        • 2.Re6#
        • 2.Qf5#
      • 1...Qxf4!
    • 1.Sxe7+?
      • 1...Ke5
        • 2.Qf5#
      • 1...Qxe7!
    • 1.Qf5+?
      • 1...Qe5
        • 2.Sxf4#
        • 2.Sxe7#
        • 2.Sc7#
      • 1...Be5
        • 2.Sf4#
        • 2.Sxc7#
        • 2.Qf3#
      • 1...e5
        • 2.Sxf4#
        • 2.Sf6#
        • 2.Sxc7#
      • 1...Se5!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Qxc4#
      • 1...Ke6
        • 2.Qf5#
      • 1...Sxe3
        • 2.Qe4#
      • 1...Sb2
        • 2.Qe4#
      • 1...Sa3
        • 2.Qe4#
      • 1...Sa5
        • 2.Qe4#
      • 1...Se5
        • 2.Sxf4#
      • 1...Sb6
        • 2.Qe4#
      • 1...Sd6
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 7
  • Sets
    • B(d);N_GUARD::S(H),XQ(g)
    • S(a);N_GUARD::QAR2(A)
    • S(a);N_GUARD::QAR2(A),XS(a)
    • S(c);S_CUTB(d)::S(H),XQ(g)
    • P(b);OGATE::QAB(A)
    • P(h);N_GUARD::S(H)
  • Tries
    • Try
      • S(G);CHECK,XB(d)
      • Refutation
        • Q(g);XS(G)
    • Try
      • S(G);CHECK,XP(h)
      • Vars
        • K(f);P-FLIGHT::QAR1(A)
      • Refutation
        • Q(g);XS(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • R(F);
    • Threat
      • QAB1(A),XS(c)
    • Vars
      • K(f);S_FLIGHT::QAB1(A)
      • S(c);XP(B)::QAB1(A)
      • S(c);::QAB1(A)
      • S(c);SBLOCK,S_CUTQ(g)::S(G),XB(d)
      • S(c);SBLOCK,S_CUTB(d)::S(H),XQ(g)
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