MESON Chess Problem Database

Problem Display
PID: 81961 (r1R2bRB/Np3K2/3kB2p/1P6/1P4p1/2pPnP2/3N1n2/5q1b w - - 0 1)

Ahues, Herbert Siegfried Oskar

2nd HM., Die Schwalbe, 1965/II

r1R2bRB/Np3K2/3kB2p/1P6/1P4p1/2pPnP2/3N1n2/5q1b

#2

11 + 11

23 Die Schwalbe 1966
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sfd1
      • 2.Se4#
    • 1...Sxd3
      • 2.Se4#
    • 1...Sh3
      • 2.Se4#
    • 1...Se4
      • 2.Sxe4#
    • 1...Sed1
      • 2.Sc4#
    • 1...Sc2
      • 2.Sc4#
    • 1...Sg2
      • 2.Sc4#
    • 1...Sc4
      • 2.Sxc4#
    • 1...Sd5
      • 2.Sc4#
    • 1...Sf5
      • 2.Sc4#
    • 1...b6
      • 2.Rc6#
  • Tries
    • 1.Rc5?
      • threat
        • 2.Be5#
      • 1...Sxd3
        • 2.Se4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sd5
        • 2.Sc4#
      • 1...Bg7!
    • 1.d4?
      • threat
        • 2.Be5#
      • 1...Qxb5
        • 2.Sxb5#
      • 1...Bg7
        • 2.Rgd8#
      • 1...Sd3
        • 2.Se4#
      • 1...Sc4!
    • 1.f4?
      • threat
        • 2.Be5#
      • 1...Bg7
        • 2.Rgd8#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sxd3!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Be5#
      • 1...Sxd3
        • 2.Se4#
      • 1...bxc6
        • 2.Rxc6#
      • 1...Bg7
        • 2.Rgd8#
      • 1...Sc4
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • S(c);N_GUARD,P_PINP(C)::S(A)
    • S(c);N_GUARD,P_PINP(C),XP(B)::S(A)
    • S(c);N_GUARD,P_PINP(C)::S(A),XS(c)
    • S(e);N_GUARD::S(A)
    • S(e);N_GUARD::S(A),XS(e)
    • P(i);N_GUARD::R1(I)
  • Tries
    • Try
      • R(I);
      • Threat
        • B(K)
      • Vars
        • S(c);N_GUARD,P_PINP(C),XP(B)::S(A)
        • S(e);N_GUARD::S(A),XS(e)
        • S(e);N_GUARD::S(A)
      • Refutation
        • B(k);
    • Try
      • P(B);
      • Threat
        • B(K)
      • Vars
        • Q(a);XP(E)::S(G),XQ(a)
        • B(k);OGATE::R(J)
        • S(c);N_GUARD,P_PINP(C)::S(A)
      • Refutation
        • S(e);
    • Try
      • P(C);
      • Threat
        • B(K)
      • Vars
        • B(k);OGATE::R(J)
        • S(e);N_GUARD::S(A),XS(e)
      • Refutation
        • S(c);P_PINP(C),XP(B)
  • Actual
    • S(G);
    • Threat
      • B(K)
    • Vars
      • S(c);N_GUARD,P_PINP(C),XP(B)::S(A)
      • P(i);OGATE,XS(G)::R1(I),XP(i)
      • B(k);OGATE::R(J)
      • S(e);N_GUARD::S(A),XS(e)
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