MESON Chess Problem Database

Problem Display
PID: 287398 (1b6/2r5/7B/n7/q2p3K/3rn3/P2kN2R/3N3Q w - - 0 1)

Berkenbusch, Helmut

Die Schwalbe, 1935

1b6/2r5/7B/n7/q2p3K/3rn3/P2kN2R/3N3Q

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Sg3#
  • Keys
    • 1.Sdc3!
      • threat
        • 2.Qc1#
      • 1...dxc3+
        • 2.Sd4#
      • 1...Kc2
        • 2.Qc1#
      • 1...Rdxc3
        • 2.Sc1#
      • 1...Rcxc3
        • 2.Sg3#
      • 1...Qd1
        • 2.Qxd1#
      • 1...Qc2
        • 2.Se4#
      • 1...Qa3
        • 2.Qd1#
      • 1...Sb3
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • R(g);SBLOCK::R(E)+S(D)
  • Actual
    • S(A);
    • Threat
      • QAB1(B)
    • Vars
      • P(e);CHECK,SBLOCK,XS(A)::R(E)+S(D)
      • K(a);N_SPINS(c),P-FLIGHT::QAR1(B)
      • R(b);SBLOCK,XS(A)::R(E)+S(D)
      • R(g);SBLOCK,XS(A)::R(E)+S(D)
      • Q(d);N_GUARD::QAR1(B),XQ(d)
      • Q(d);SBLOCK::S(A)
      • Q(d);N_GUARD::QAR1(B)
      • S(f);S_CUTQ(d)::QAR1(B)
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