MESON Chess Problem Database

Problem Display
PID: 240208 (8/1K6/4p3/8/1Rp1N3/N1Pk1B2/bn2R3/Bq3n2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Problem-Forum, 2014

8/1K6/4p3/8/1Rp1N3/N1Pk1B2/bn2R3/Bq3n2

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Rd2#
    • 1...Sd1
      • 2.Sc5#
    • 1...Sa4
      • 2.Sf2#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Se5#
      • 1...Sxc4
        • 2.Sf2#
        • 2.Sc5#
      • 1...Sd2
        • 2.Rxd2#
      • 1...e5
        • 2.Sxe5#
      • 1...Bxc4!
    • 1.Sb5?
      • threat
        • 2.Sf2#
        • 2.Sc5#
      • 1...Qe1
        • 2.Sc5#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sa4
        • 2.Sf2#
      • 1...Sd2!
    • 1.Bxb2?
      • threat
        • 2.Sf2#
        • 2.Sc5#
      • 1...Qe1
        • 2.Sc5#
      • 1...Qxb2!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rd6#
      • 1...Se3
        • 2.Rd2#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sa4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK::R1(B)
    • S(d);P_PINR(F)::S(G)
  • Tries
    • Try
      • S(C);XP(f)
      • Threat
        • S(C)
      • Vars
        • S(b);N_GUARD::R1(B),XS(b)
        • P(g);::S(C),XP(g)
      • Refutation
        • B(c);XS(C)
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::S(G)
        • S(d);::S(G)
      • Refutation
        • S(b);
    • Try
      • B(A);XS(d)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);::S(G)
      • Refutation
        • Q(a);P_PINR(F),XB(A)
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • S(b);N_GUARD,SBLOCK::R1(B)
      • S(d);P_PINR(F)::S(G)
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