MESON Chess Problem Database

Problem Display
PID: 159875 (7Q/4p1n1/2N5/2p2pP1/2P1kP2/n2p1N2/2bB4/1B2KR2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Freie Presse, 1967

7Q/4p1n1/2N5/2p2pP1/2P1kP2/n2p1N2/2bB4/1B2KR2

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sh5
      • 2.Qe5#
    • 1...Se6
      • 2.Qe5#
    • 1...Se8
      • 2.Qe5#
  • Tries
    • 1.Sg1?
      • threat
        • 2.Qh1#
      • 1...Sh5
        • 2.Qe5#
      • 1...Bd1!
    • 1.Sfd4?
      • threat
        • 2.Qh1#
      • 1...Sh5
        • 2.Qe5#
      • 1...Bd1!
    • 1.Sfe5?
      • threat
        • 2.Qh1#
      • 1...Bd1
        • 2.Bxd3#
      • 1...Sh5!
    • 1.Scd4?
      • threat
        • 2.Qa8#
      • 1...Se8
        • 2.Qe5#
      • 1...Ba4!
    • 1.Sa5?
      • threat
        • 2.Qa8#
      • 1...Se8
        • 2.Qe5#
      • 1...Ba4!
    • 1.Sce5?
      • threat
        • 2.Qa8#
      • 1...Ba4
        • 2.Bxd3#
      • 1...Se8!
    • 1.Sa7?
      • threat
        • 2.Qa8#
      • 1...Se8
        • 2.Qe5#
      • 1...Ba4!
    • 1.Sxe7?
      • threat
        • 2.Qa8#
      • 1...Se8
        • 2.Qe5#
      • 1...Ba4!
    • 1.Qxg7?
      • threat
        • 2.Qe5#
        • 2.Qxe7#
      • 1...e5
        • 2.Qxe5#
      • 1...e6
        • 2.Qe5#
      • 1...Sxc4!
    • 1.Qh1?
      • threat
        • 2.Sg1#
        • 2.Sh2#
        • 2.Sfd4#
        • 2.Sh4#
        • 2.Sfe5#
      • 1...e5
        • 2.Sg1#
        • 2.Sh2#
        • 2.Sfd4#
        • 2.Sh4#
        • 2.Sfxe5#
      • 1...Bd1!
    • 1.Qa8?
      • threat
        • 2.Sb4#
        • 2.Scd4#
        • 2.Sa5#
        • 2.Sce5#
        • 2.Sa7#
        • 2.Sxe7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...e5
        • 2.Sb4#
        • 2.Scd4#
        • 2.Sa5#
        • 2.Scxe5#
        • 2.Sa7#
        • 2.Se7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...e6
        • 2.Sb4#
        • 2.Scd4#
        • 2.Sa5#
        • 2.Sce5#
        • 2.Sa7#
        • 2.Se7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...Ba4!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Sxc4!
    • 1.Qg8?
      • threat
        • 2.Qd5#
      • 1...Sxc4
        • 2.Qxc4#
      • 1...Se6
        • 2.Qxe6#
      • 1...e6!
    • 1.g6?
      • threat
        • 2.Sg5#
      • 1...Se6
        • 2.Qe5#
      • 1...Sxc4!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Qa8#
      • 1...Ba4
        • 2.Bxd3#
      • 1...Se8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(h);OGATE::QAR1(J)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB(J)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • S(E);
      • Threat
        • QAB(J)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • S(E);
      • Threat
        • QAB(J)
      • Vars
        • B(a);OGATE,P_SPINP(c)::B(A),XP(c)
      • Refutation
        • S(h);
    • Try
      • S(I);
      • Threat
        • QAB(J)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • S(I);
      • Threat
        • QAB(J)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • S(I);
      • Threat
        • QAB(J)
      • Vars
        • B(a);OGATE,P_SPINP(c)::B(A),XP(c)
      • Refutation
        • S(h);
    • Try
      • S(I);
      • Threat
        • QAB(J)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • S(I);XP(g)
      • Threat
        • QAB(J)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • Q(J);XS(h)
      • Threat
        • DUALS(2)
      • Vars
        • P(g);::QAR1(J),XP(g)
        • P(g);::QAR1(J)
      • Refutation
        • S(b);XP(F)
    • Try
      • Q(J);
      • Threat
        • DUALS(5)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • Q(J);
      • Threat
        • DUALS(8)
      • Refutation
        • B(a);P_SPINP(c)
    • Try
      • Q(J);
      • Threat
        • QAR1(J)
      • Vars
        • P(g);::QAR1(J),XP(g)
      • Refutation
        • S(b);XP(F)
    • Try
      • Q(J);
      • Threat
        • QAB1(J)
      • Vars
        • S(b);OGATE,XP(F)::QAR2(J),XS(b)
        • S(h);N_GUARD::QAR2(J),XS(h)
      • Refutation
        • P(g);
    • Try
      • P(H);
      • Threat
        • S(E)
      • Vars
        • S(h);OGATE::QAR1(J)
      • Refutation
        • S(b);XP(F)
  • Actual
    • S(I);
    • Threat
      • QAB(J)
    • Vars
      • B(a);OGATE,P_SPINP(c)::B(A),XP(c)
      • S(h);OGATE::QAR1(J)
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