MESON Chess Problem Database

Problem Display
PID: 161350 (8/K1p4p/B5p1/6R1/nB1kP1N1/2rP3Q/b4pN1/5nb1 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Die Schwalbe, 1979

8/K1p4p/B5p1/6R1/nB1kP1N1/2rP3Q/b4pN1/5nb1

#2

9 + 10

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Rd5#
    • 1...Rxd3
      • 2.Qxd3#
    • 1...Rc4
      • 2.Rd5#
    • 1...Bb1
      • 2.Rd5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Sd2
      • 2.Qe3#
    • 1...Sh2
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
  • Tries
    • 1.Sh4?
      • threat
        • 2.Sf3#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Rc4
        • 2.Rd5#
      • 1...Sd2
        • 2.Qe3#
      • 1...Sh2
        • 2.Qe3#
      • 1...Bc4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sf3#
      • 1...Rxd3
        • 2.Qxd3#
      • 1...Rc4
        • 2.Qd7#
      • 1...Bc4
        • 2.Sc6#
      • 1...Sd2
        • 2.Qe3#
      • 1...Sh2
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(e);S_CUTB(c)::R1(G)
    • R(e);OGATE,XP(B)::QAR1(C),XR(e)
    • B(c);N_GUARD::R1(G)
    • B(c);N_GUARD::R1(G),XB(c)
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(A)
      • Vars
        • R(e);OGATE,XP(B)::QAR1(C),XR(e)
        • R(e);S_CUTB(c)::R1(G)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • B(c);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • R(e);OGATE,XP(B)::QAR1(C),XR(e)
      • R(e);S_CUTB(c)::QAR(C)
      • B(c);S_CUTR(e)::S(F)
      • S(a);N_GUARD::QAB1(C)
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