MESON Chess Problem Database
Problem Display
PID: 200382 (8/4K3/7p/1p2k2r/6Rp/4N2Q/3Pr2b/3q4 w - - 0 1)
Deuzemann, J
Op de Hoogte, 1909
#2
5 + 8
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.d4#
- 1...Qb3
- 2.d4#
- 1...Qb1
- 2.d4#
- 1...Qc1
- 2.d4#
- 1...Qe1
- 2.d4#
- 1...Qf1
- 2.d4#
- 1...Qg1
- 2.d4#
- 1...Qh1
- 2.d4#
- 1...Re1
- 2.Qxh2#
- 1...Qc2
- Tries
- 1.Rb4?
- threat
- 2.Qe6#
- 1...Rf5
- 2.Qxf5#
- 1...Qb3!
- threat
- 1.Rc4?
- threat
- 2.Qe6#
- 1...Rf5
- 2.Qxf5#
- 1...bxc4!
- threat
- 1.Qf3?
- threat
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 2.Qf6#
- 1...Qxd2
- 2.Re4#
- 2.Qe4#
- 2.Qf6#
- 1...Rxd2
- 2.Re4#
- 2.Qe4#
- 2.Qf6#
- 1...Bf4
- 2.Qd5#
- 2.Qxf4#
- 1...Qc2
- 2.Qd5#
- 2.Qf6#
- 2.d4#
- 1...Qb3
- 2.Re4#
- 2.Qe4#
- 2.Qf6#
- 2.d4#
- 1...Qa4
- 2.Qd5#
- 2.Qf6#
- 1...Qb1
- 2.Qd5#
- 2.Qf6#
- 2.d4#
- 1...Qf1
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 2.d4#
- 1...Qh1
- 2.Re4#
- 2.Qf6#
- 2.d4#
- 1...Rf2
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 1...Rf5
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 2.Qxf5#
- 1...Rxe3!
- threat
- 1.Rb4?
- Keys
- 1.Qf1!
- threat
- 2.Qf6#
- 1...Qxf1
- 2.d4#
- 1...Rxe3
- 2.Qxb5#
- 1...Bf4
- 2.Qxf4#
- 1...Rf2
- 2.Qxb5#
- 1...Rf5
- 2.Qxf5#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::P(A)
- R(b);N_GUARD::QAB(C),XB(c)
- Tries
- Try
- R(D);
- Threat
- QAR1(C)
- Vars
- R(g);N_GUARD::QAR1(C),XR(g)
- Refutation
- Q(a);
- Try
- R(D);
- Threat
- QAR1(C)
- Vars
- R(g);N_GUARD::QAR1(C),XR(g)
- Refutation
- P(e);XR(D)
- Try
- Q(C);
- Threat
- DUALS(4)
- Refutation
- R(b);XS(B)
- Try
- Actual
- Q(C);
- Threat
- QAB1(C)
- Vars
- Q(a);N_GUARD,XQ(C)::P(A)
- R(b);OGATE,XS(B)::QAR(C),XP(e)
- B(c);N_GUARD::QAB1(C),XB(c)
- R(b);OGATE::QAR(C),XP(e)
- R(g);N_GUARD::QAR1(C),XR(g)
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).