MESON Chess Problem Database
Problem Display
PID: 254552 (8/3QN3/r1nnp3/2p2b2/2k2N1K/P3Rp2/8/BR1B4 w - - 0 1)
Shire, David J
Probleemblad, 1983
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Qxe6#
- 1...Bd3
- 2.Qxe6#
- 1...Bg6
- 2.Qxe6#
- 1...Bh7
- 2.Qxe6#
- 1...Sb4
- 2.Bb3#
- 1...Sd4
- 2.Rc3#
- 1...Sa5
- 2.Qa4#
- 1...Se5
- 2.Bb3#
- 1...Sa7
- 2.Bb3#
- 1...Sxe7
- 2.Bb3#
- 1...Sb8
- 2.Bb3#
- 1...Sd8
- 2.Bb3#
- 1...Se4
- 2.Qd3#
- 1...Sb5
- 2.Bb3#
- 1...Sb7
- 2.Rc3#
- 1...Sf7
- 2.Rc3#
- 1...Sc8
- 2.Rc3#
- 1...Se8
- 2.Rc3#
- 1...Bc2
- Tries
- 1.Sxf5?
- threat
- 2.Sxd6#
- 2.Rc3#
- 2.Qxe6#
- 1...Rxa3
- 2.Sxd6#
- 2.Qxe6#
- 1...exf5
- 2.Qe6#
- 1...Sb4
- 2.Bb3#
- 2.Rc3#
- 1...Sd4
- 2.Rc3#
- 1...Sa5
- 2.Rc1#
- 2.Rc3#
- 2.Qa4#
- 2.Qxe6#
- 1...Se5
- 2.Bb3#
- 2.Rc1#
- 2.Rc3#
- 2.Qxe6#
- 1...Sa7
- 2.Bb3#
- 2.Rc1#
- 2.Rc3#
- 2.Qxe6#
- 1...Se7
- 2.Bb3#
- 2.Rc1#
- 2.Rc3#
- 1...Sb8
- 2.Bb3#
- 2.Rc1#
- 2.Rc3#
- 2.Qxe6#
- 1...Sd8
- 2.Bb3#
- 2.Rc1#
- 2.Rc3#
- 1...Se4
- 2.Qxe6#
- 2.Qd3#
- 1...Sb5
- 2.Bb3#
- 2.Qxe6#
- 2.Qd3#
- 1...Sb7
- 2.Rc3#
- 2.Qxe6#
- 2.Qd3#
- 1...Sf7
- 2.Rc3#
- 2.Qxe6#
- 2.Qd3#
- 1...Sc8
- 2.Rc3#
- 2.Qxe6#
- 2.Qd3#
- 1...Se8
- 2.Rc3#
- 2.Qxe6#
- 2.Qd3#
- 1...e5
- 2.Sxd6#
- 2.Rc3#
- 2.Qe6#
- 1...Sxf5+!
- threat
- 1.Sxc6?
- threat
- 2.Se5#
- 2.Rc3#
- 1...Rxa3
- 2.Se5#
- 1...Bxb1
- 2.Se5#
- 1...Bd3
- 2.Se5#
- 2.Qxe6#
- 1...Se4
- 2.Se5#
- 2.Qd3#
- 1...Sb5
- 2.Se5#
- 2.Bb3#
- 1...Sf7
- 2.Rc3#
- 1...e5
- 2.Sxe5#
- 2.Rc3#
- 1...Rxc6!
- threat
- 1.Be2+?
- 1...Bd3
- 2.Bxd3#
- 2.Qxe6#
- 1...fxe2!
- 1...Bd3
- 1.Rb4+?
- 1...Sxb4
- 2.Bb3#
- 1...cxb4!
- 1...Sxb4
- 1.Re4+?
- 1...Sd4
- 2.Bb3#
- 2.Rc1#
- 1...Sxe4
- 2.Qd3#
- 1...Bxe4!
- 1...Sd4
- 1.Sxf5?
- Keys
- 1.Sc8!
- threat
- 2.Sxd6#
- 1...Sxc8
- 2.Rc3#
- 1...Sb4
- 2.Bb3#
- 1...Sd4
- 2.Rc3#
- 1...Sa5
- 2.Qa4#
- 1...Se5
- 2.Bb3#
- 1...Sa7
- 2.Bb3#
- 1...Se7
- 2.Bb3#
- 1...Sb8
- 2.Bb3#
- 1...Sd8
- 2.Bb3#
- 1...Se4
- 2.Qd3#
- 1...Sb5
- 2.Bb3#
- 1...Sb7
- 2.Rc3#
- 1...Sf7
- 2.Rc3#
- 1...Se8
- 2.Rc3#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(d);N_GUARD::QAB(H),XP(h)
- S(f);::B(C)
- S(f);SBLOCK::R1(E)
- S(f);OGATE::QAR2(H)
- S(f);XS(I)::B(C)
- S(g);OGATE::QAB1(H)
- S(g);SBLOCK::B(C)
- S(g);::R1(E)
- Tries
- Try
- S(I);XB(d)
- Threat
- DUALS(3)
- Vars
- P(h);XS(I)::QAB(H)
- S(f);::R1(E)
- Refutation
- S(g);CHECK,XS(I)
- Try
- S(I);XS(f)
- Threat
- DUALS(2)
- Vars
- R(e);XP(D)::S(I)
- B(d);XR(B)::S(I)
- S(g);::R1(E)
- Refutation
- R(e);XS(I)
- Try
- B(C);CHECK
- Refutation
- P(a);XB(C)
- Try
- R(B);CHECK
- Vars
- S(f);XR(B)::B(C)
- Refutation
- P(c);XR(B)
- Try
- R(E);CHECK
- Vars
- S(g);OGATE,XR(E)::QAB1(H)
- Refutation
- B(d);XR(E)
- Try
- Actual
- S(I);
- Threat
- S(I),XS(g)
- Vars
- S(g);XS(I)::R1(E)
- S(f);::B(C)
- S(f);SBLOCK::R1(E)
- S(f);OGATE::QAR2(H)
- S(g);OGATE::QAB1(H)
- S(g);SBLOCK::B(C)
- S(g);::R1(E)
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).