MESON Chess Problem Database

Problem Display
PID: 82003 (b7/3QN1r1/1p6/1KbpPpn1/3k1N1n/3P2R1/1P6/1B2R3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Magyar Sakkelet, 1974

b7/3QN1r1/1p6/1KbpPpn1/3k1N1n/3P2R1/1P6/1B2R3

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6+
      • 2.Sxc6#
    • 1...Sg2
      • 2.Sxf5#
    • 1...Shf3
      • 2.Sxf5#
    • 1...Sg6
      • 2.Sxf5#
    • 1...Sgf3
      • 2.Se6#
    • 1...Sh3
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sf7
      • 2.Se6#
    • 1...Sh7
      • 2.Se6#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Se2#
      • 1...Bc6+
        • 2.Sxc6#
      • 1...Sxf5
        • 2.Sxf5#
      • 1...Sgf3
        • 2.Se6#
      • 1...Shf3!
    • 1.Qe6?
      • threat
        • 2.Se2#
      • 1...Bc6+
        • 2.Sxc6#
      • 1...Sxe6
        • 2.Sxe6#
      • 1...Shf3
        • 2.Sxf5#
      • 1...Sgf3!
    • 1.Qd6?
      • threat
        • 2.Se2#
      • 1...Bc6+
        • 2.Sxc6#
      • 1...Shf3
        • 2.Sxf5#
      • 1...Sgf3
        • 2.Se6#
      • 1...Bxd6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Se2#
      • 1...Bc6+
        • 2.Sxc6#
      • 1...Bd6
        • 2.Qc3#
      • 1...Shf3
        • 2.Sxf5#
      • 1...Sgf3
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(i);CHECK,N_GUARD::S(J),XB(i)
    • S(b);N_GUARD::S(J),XP(e)
    • S(f);N_GUARD::S(F)
    • S(f);N_GUARD::S(F),XS(f)
  • Tries
    • Try
      • Q(I);N_PINP(d),XP(e)
      • Threat
        • S(F)
      • Vars
        • B(i);CHECK,N_GUARD::S(J),XB(i)
        • S(b);XQ(I)::S(J),XS(b)
        • S(f);N_GUARD::S(F)
      • Refutation
        • S(b);
    • Try
      • Q(I);N_PINP(d)
      • Threat
        • S(F)
      • Vars
        • B(i);CHECK,N_GUARD::S(J),XB(i)
        • S(f);XQ(I)::S(F),XS(f)
        • S(b);N_GUARD::S(J),XP(e)
      • Refutation
        • S(f);
    • Try
      • Q(I);
      • Threat
        • S(F)
      • Vars
        • B(i);CHECK,N_GUARD::S(J),XB(i)
        • S(b);N_GUARD::S(J),XP(e)
        • S(f);N_GUARD::S(F)
      • Refutation
        • B(c);N_SPINP(d),XQ(I)
  • Actual
    • Q(I);N_PINP(d)
    • Threat
      • S(F)
    • Vars
      • B(i);CHECK,N_GUARD::S(J),XB(i)
      • B(c);OGATE::QAB1(I)
      • S(b);N_GUARD::S(J),XP(e)
      • S(f);N_GUARD::S(F)
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