MESON Chess Problem Database

Problem Display
PID: 164276 (8/2pbQ3/2r2r2/R1n1Np2/2Nk4/3p4/1P4B1/4RK2 w - - 0 1)

Schulz, Hermann

Die Schwalbe, 1970

8/2pbQ3/2r2r2/R1n1Np2/2Nk4/3p4/1P4B1/4RK2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Qxc5#
    • 1...Rb6
      • 2.Qxc5#
    • 1...Rce6
      • 2.Qxc5#
    • 1...Sb3
      • 2.Rd5#
    • 1...Sa4
      • 2.Rd5#
    • 1...Sa6
      • 2.Rd5#
    • 1...Se6
      • 2.Rd5#
    • 1...Sb7
      • 2.Rd5#
  • Tries
    • 1.Sa3?
      • threat
        • 2.Sb5#
      • 1...Ra6
        • 2.Qxc5#
      • 1...Rb6
        • 2.Qxc5#
      • 1...Rce6
        • 2.Qxc5#
      • 1...Se4
        • 2.Sf3#
      • 1...Rcd6!
    • 1.Sf3+?
      • 1...Kd5
        • 2.Se3#
      • 1...Kxc4!
  • Keys
    • 1.Se3!
      • threat
        • 2.Sf3#
      • 1...Rce6
        • 2.Qxc5#
      • 1...Rfe6
        • 2.Sxf5#
      • 1...Be6
        • 2.Sxc6#
      • 1...Se6
        • 2.Rd5#
      • 1...d2
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::QAB1(H),XS(c)
    • S(c);OGATE::R1(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • R(e);N_GUARD::QAB1(H),XS(c)
        • S(c);::S(G)
      • Refutation
        • R(e);
    • Try
      • S(G);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINS(c)::S(E)
      • Refutation
        • K(b);P-FLIGHT,XS(E)
  • Actual
    • S(E);
    • Threat
      • S(G)
    • Vars
      • R(e);N_GUARD::QAB1(H),XS(c)
      • R(f);N_GUARD,S_CUTB(h)::S(E),XP(d)
      • B(h);N_GUARD,S_CUTR(f)::S(G),XR(e)
      • S(c);OGATE::R1(F)
      • P(a);N_GUARD::S(E)
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