MESON Chess Problem Database

Problem Display
PID: 287498 (N5Q1/5r2/4r1q1/RPPknB2/4N1pb/2BPRp2/K7/8 w - - 0 1)

Rupp, Robert

Die Schwalbe, 1935

N5Q1/5r2/4r1q1/RPPknB2/4N1pb/2BPRp2/K7/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Sc7#
    • 1...Rb6
      • 2.Sc7#
    • 1...Rd6
      • 2.Sc7#
    • 1...Ref6
      • 2.Sc7#
    • 1...Re8
      • 2.Sc7#
    • 1...Rxf5
      • 2.Sb6#
      • 2.Sc7#
    • 1...Rff6
      • 2.Sb6#
      • 2.Sc7#
    • 1...Ra7
      • 2.Sb6#
    • 1...Rc7
      • 2.Sb6#
      • 2.Sxc7#
    • 1...Rd7
      • 2.Sb6#
    • 1...Re7
      • 2.Sb6#
    • 1...Rg7
      • 2.Sb6#
    • 1...Rh7
      • 2.Sb6#
    • 1...Rf8
      • 2.Sb6#
      • 2.Sc7#
    • 1...Be7
      • 2.Sc7#
    • 1...Sc6
      • 2.Sb6#
    • 1...Sd7
      • 2.Sc7#
  • Tries
    • 1.Qd8+?
      • 1...Rd6
        • 2.Sb6#
      • 1...Rd7
        • 2.Sc7#
      • 1...Sd7
        • 2.Sc7#
      • 1...Bxd8!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Rd4#
      • 1...Sxd3
        • 2.Rxd3#
      • 1...Ra6
        • 2.Sc7#
      • 1...Ra7
        • 2.Sb6#
      • 1...Sc4
        • 2.dxc4#
      • 1...Sc6
        • 2.Sb6#
      • 1...Sd7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(f);P_PINR(F),P_SPINR(h)::S(J)
    • R(f);P_SPINR(h)::S(J)
    • R(h);P_PINR(F),P_SPINR(f)::S(J)
    • R(h);P_SPINR(f)::S(J)
    • B(c);S_CUTR(h)::S(J)
    • S(e);S_CUTR(f)::S(J)
    • S(e);S_CUTR(h)::S(J)
  • Tries
    • Try
      • Q(K);CHECK
      • Vars
        • R(f);P_SPINR(f)::S(J)
        • R(h);P_SPINR(h)::S(J)
        • S(e);P_SPINS(e)::S(J)
      • Refutation
        • B(c);XQ(K)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • S(e);OGATE,XP(C)::R(D),XS(e)
      • R(f);P_PINR(F),P_SPINR(h)::S(J)
      • R(h);P_PINR(F),P_SPINR(f)::S(J)
      • S(e);OGATE::P(C),XS(e)
      • S(e);S_CUTR(f)::S(J)
      • S(e);S_CUTR(h)::S(J)
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