MESON Chess Problem Database

Problem Display
PID: 161856 (8/1pn1N1n1/3BQ3/r3p2r/p1pkNpR1/5P2/1P1KP3/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1983

8/1pn1N1n1/3BQ3/r3p2r/p1pkNpR1/5P2/1P1KP3/8

#2

9 + 10

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Bxc5#
    • 1...Ra6
      • 2.Bc5#
    • 1...Ra7
      • 2.Bc5#
    • 1...Ra8
      • 2.Bc5#
    • 1...Sb5
      • 2.Bc5#
      • 2.Qd5#
    • 1...c3+
      • 2.bxc3#
    • 1...b5
      • 2.Sc6#
      • 2.Bc5#
    • 1...b6
      • 2.Sc6#
  • Tries
    • 1.Sg5?
      • threat
        • 2.e3#
      • 1...c3+
        • 2.bxc3#
      • 1...Sd5
        • 2.Qxe5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...e4
        • 2.Qxe4#
      • 1...Rh2!
    • 1.Bb4?
      • threat
        • 2.Bc3#
      • 1...c3+
        • 2.Bxc3#
        • 2.bxc3#
      • 1...Sb5
        • 2.Bc5#
        • 2.Qd5#
        • 2.Qb6#
      • 1...Sd5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.e3#
      • 1...c3+
        • 2.bxc3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Rh2
        • 2.Qxe5#
      • 1...Sf5
        • 2.Qxe5#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::B(G),XR(e)
    • R(e);N_GUARD::B(G)
    • P(b);CHECK,OGATE::P(A),XP(b)
    • P(h);N_GUARD::S(I)
  • Tries
    • Try
      • S(E);P_PINP(d)
      • Threat
        • P(C)
      • Vars
        • P(b);CHECK,OGATE::P(A),XP(b)
        • S(i);S_CUTR(e)::QAB1(H),XP(f)
        • S(j);N_GUARD::S(I),XS(j)
        • P(f);N_SPINP(d),OGATE::QAR1(H),XP(f)
      • Refutation
        • R(g);P_PINP(C)
    • Try
      • B(G);
      • Threat
        • B(G)
      • Refutation
        • S(i);
  • Actual
    • S(E);P_PINP(d)
    • Threat
      • P(C)
    • Vars
      • P(b);CHECK,OGATE::P(A),XP(b)
      • S(i);N_GUARD::QAR1(H),XS(i)
      • R(g);N_GUARD,P_PINP(C)::QAB1(H),XP(f)
      • S(j);S_CUTR(g)::QAB1(H),XP(f)
      • P(f);N_SPINP(d),OGATE::QAR1(H),XP(f)
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