MESON Chess Problem Database
Problem Display
PID: 69076 (8/8/1p6/1pn2Q2/1R1NP3/2PkbR2/8/3NKn2 w - - 0 1)
Hartong, Jan
Jaarboek, 1941
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sg3
- 2.Rxe3#
- 1...Sb3
- 2.e5#
- 1...Sa4
- 2.e5#
- 1...Sxe4
- 2.Qxb5#
- 1...Sa6
- 2.e5#
- 1...Se6
- 2.e5#
- 1...Sb7
- 2.e5#
- 1...Sd7
- 2.e5#
- 1...Sd2
- Tries
- 1.Rg3?
- 1...Sxe4
- 2.Qxf1#
- 2.Qxb5#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sb3
- 2.e5#
- 1...Sa4
- 2.e5#
- 1...Sa6
- 2.e5#
- 1...Se6
- 2.e5#
- 1...Sb7
- 2.e5#
- 1...Sd7
- 2.e5#
- 1...Sxg3!
- 1...Sxe4
- 1.Rh3?
- 1...Sxe4
- 2.Qxf1#
- 2.Qxb5#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sb3
- 2.e5#
- 1...Sa4
- 2.e5#
- 1...Sa6
- 2.e5#
- 1...Se6
- 2.e5#
- 1...Sb7
- 2.e5#
- 1...Sd7
- 2.e5#
- 1...Sg3!
- 1...Sxe4
- 1.Qg6?
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sg3
- 2.Rxe3#
- 1...Sb3
- 2.e5#
- 1...Sa4
- 2.e5#
- 1...Sa6
- 2.e5#
- 1...Se6
- 2.e5#
- 1...Sb7
- 2.e5#
- 1...Sd7
- 2.e5#
- 1...Sxe4!
- 1...Sd2
- 1.Qh7?
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sg3
- 2.Rxe3#
- 1...Sb3
- 2.e5#
- 1...Sa4
- 2.e5#
- 1...Sa6
- 2.e5#
- 1...Se6
- 2.e5#
- 1...Sb7
- 2.e5#
- 1...Sd7
- 2.e5#
- 1...Sxe4!
- 1...Sd2
- 1.Qxc5?
- threat
- 2.Sf2#
- 1...Kxe4
- 2.Qf5#
- 1...bxc5!
- threat
- 1.Rg3?
- Keys
- 1.Qc8!
- 1...Kxe4
- 2.Qf5#
- 1...Sxe4
- 2.Sb2#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sg3
- 2.Rxe3#
- 1...Sb3
- 2.Sf2#
- 1...Sa4
- 2.Sf2#
- 1...Sa6
- 2.Sf2#
- 1...Se6
- 2.Sf2#
- 1...Sb7
- 2.Sf2#
- 1...Sd7
- 2.Sf2#
- 1...Kxe4
- 1.Qc8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(D),XB(c)
- S(e);N_GUARD::QAB(H)+P(G)
- S(e);OGATE,P_SPINS(e),SBLOCK,XP(G)::QAB(H),XP(d)
- Tries
- Try
- R(D);
- Vars
- S(a);N_GUARD::R1(D),XB(c)
- S(e);N_GUARD::QAB(H)+P(G)
- Refutation
- S(a);N_SPINB(c),XR(D)
- Try
- R(D);
- Vars
- S(a);N_GUARD::R1(D),XB(c)
- S(e);N_GUARD::QAB(H)+P(G)
- Refutation
- S(a);N_SPINB(c)
- Try
- Q(H);
- Vars
- S(a);N_GUARD::R1(D),XB(c)
- S(e);N_GUARD::QAB(H)+P(G)
- Refutation
- S(e);P_SPINS(e),XP(G)
- Try
- Q(H);
- Vars
- S(a);N_GUARD::R1(D),XB(c)
- S(e);N_GUARD::QAB(H)+P(G)
- Refutation
- S(e);P_SPINS(e),XP(G)
- Try
- Q(H);XS(e)
- Threat
- S(A)
- Vars
- K(b);N_SPINB(c),OGATEB,S_FLIGHT,XP(G)::QAB1(H)
- Refutation
- P(f);XQ(H)
- Try
- Actual
- Q(H);
- Vars
- K(b);N_SPINB(c),OGATEB,S_FLIGHT,XP(G)::QAB1(H)
- S(e);SBLOCK,XP(G)::S(A)
- S(a);N_GUARD::R1(D),XB(c)
- S(e);::S(A)
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).