MESON Chess Problem Database

Problem Display
PID: 163729 (BB6/3p4/b1N2nK1/3r2p1/4k3/2Pp3p/3P4/4NQbq w - - 0 1)

Ahues, Herbert Siegfried Oskar

stern, 1996

(First published on Thu Nov 7 1996)

BB6/3p4/b1N2nK1/3r2p1/4k3/2Pp3p/3P4/4NQbq

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Qxf3#
    • 1...Qh2
      • 2.Qf3#
    • 1...Rd4
      • 2.Qf5#
    • 1...Rb5
      • 2.Qxd3#
    • 1...Rf5
      • 2.Qxf5#
    • 1...Rd6
      • 2.Qf5#
    • 1...Bf2
      • 2.Qxh1#
    • 1...Bh2
      • 2.Qxh1#
    • 1...Be3
      • 2.Qxh1#
    • 1...Bd4
      • 2.Qxh1#
    • 1...Bc5
      • 2.Qxh1#
    • 1...Bb6
      • 2.Qxh1#
    • 1...Ba7
      • 2.Qxh1#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bb7!
    • 1.Sa5?
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bb7!
    • 1.Se5?
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2!
    • 1.Sa7?
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bb7!
    • 1.Se7?
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bb7!
    • 1.Sd8?
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bb7!
    • 1.Qe2+?
      • 1...Be3
        • 2.Qxe3#
      • 1...dxe2!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qf5#
      • 1...Qf3
        • 2.Qxf3#
      • 1...Bf2
        • 2.Qxh1#
      • 1...Bb7
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 12
  • Sets
    • Q(b);N_GUARD::QAB1(B),XQ(b)
    • Q(b);N_GUARD::QAB1(B)
    • R(f);N_GUARD::QAB1(B)
    • R(f);N_GUARD,S_CUTB(h)::QAB1(B),XP(c)
    • R(f);N_GUARD::QAB1(B),XR(f)
    • B(a);OGATE::QAB(B),XQ(b)
    • P(g);N_GUARD::QAR1(B)
  • Tries
    • Try
      • S(E);P_PINR(f)
      • Threat
        • QAB1(B)
      • Vars
        • Q(b);N_GUARD::QAB1(B),XQ(b)
        • B(a);OGATE::QAB(B),XQ(b)
      • Refutation
        • B(h);N_SPINR(f)
    • Try
      • S(E);P_PINR(f)
      • Threat
        • QAB1(B)
      • Vars
        • Q(b);N_GUARD::QAB1(B),XQ(b)
        • B(a);OGATE::QAB(B),XQ(b)
      • Refutation
        • B(h);N_SPINR(f)
    • Try
      • S(E);P_PINR(f)
      • Threat
        • QAB1(B)
      • Vars
        • Q(b);N_GUARD::QAB1(B),XQ(b)
      • Refutation
        • B(a);
    • Try
      • S(E);P_PINR(f)
      • Threat
        • QAB1(B)
      • Vars
        • Q(b);N_GUARD::QAB1(B),XQ(b)
        • B(a);OGATE::QAB(B),XQ(b)
      • Refutation
        • B(h);N_SPINR(f)
    • Try
      • S(E);P_PINR(f)
      • Threat
        • QAB1(B)
      • Vars
        • Q(b);N_GUARD::QAB1(B),XQ(b)
        • B(a);OGATE::QAB(B),XQ(b)
      • Refutation
        • B(h);N_SPINR(f)
    • Try
      • S(E);P_PINR(f)
      • Threat
        • QAB1(B)
      • Vars
        • Q(b);N_GUARD::QAB1(B),XQ(b)
        • B(a);OGATE::QAB(B),XQ(b)
      • Refutation
        • B(h);N_SPINR(f)
    • Try
      • Q(B);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAR1(B),XB(a)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • S(E);P_PINR(f)
    • Threat
      • QAB1(B)
    • Vars
      • Q(b);N_GUARD::QAB1(B),XQ(b)
      • B(a);OGATE::QAB(B),XQ(b)
      • B(h);N_GUARD,N_SPINR(f)::QAB1(B),XP(c)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).