MESON Chess Problem Database
Problem Display
PID: 203042 (8/8/R1n1n1R1/p2k4/p4P2/K2N4/1Q1N1r2/6B1 w - - 0 1)
ten Cate, Pieter
The Problemist, 1983
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Sb4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Scd8
- 2.Qe5#
- 1...Sb4
- Tries
- 1.Qc3?
- 1...Rxd2
- 2.Qxc6#
- 1...Rxf4
- 2.Qxc6#
- 1...Sxf4
- 2.Qc4#
- 2.Qc5#
- 1...Rf1
- 2.Qxc6#
- 1...Re2
- 2.Qxc6#
- 1...Rg2
- 2.Qxc6#
- 1...Rh2
- 2.Qxc6#
- 1...Rf3
- 2.Qxc6#
- 1...Sb4
- 2.Qe5#
- 2.Qc4#
- 1...Scd4
- 2.Qc4#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 2.Qc4#
- 1...Se7
- 2.Qe5#
- 2.Qc4#
- 1...Sb8
- 2.Qe5#
- 2.Qc4#
- 1...Scd8
- 2.Qe5#
- 2.Qc4#
- 1...Sed4
- 2.Qc4#
- 2.Qc5#
- 1...Sc5
- 2.Qc4#
- 2.Qxc5#
- 1...Sg5
- 2.Qc4#
- 2.Qc5#
- 1...Sc7
- 2.Qc4#
- 2.Qc5#
- 1...Sg7
- 2.Qc4#
- 2.Qc5#
- 1...Sed8
- 2.Qc4#
- 2.Qc5#
- 1...Sf8
- 2.Qc4#
- 2.Qc5#
- 1...Kd6!
- 1...Rxd2
- 1.Qf6?
- 1...Kd6
- 2.Qd8#
- 1...Rxd2
- 2.Qxe6#
- 1...Rxf4
- 2.Qxe6#
- 1...Sxf4
- 2.Qd6#
- 1...Rf1
- 2.Qxe6#
- 1...Rg2
- 2.Qxe6#
- 1...Rh2
- 2.Qxe6#
- 1...Rf3
- 2.Qxe6#
- 1...Sb4
- 2.Qe5#
- 1...Scd4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Scd8
- 2.Qe5#
- 1...Sed4
- 2.Qd6#
- 1...Sc5
- 2.Qd6#
- 1...Sg5
- 2.Qd6#
- 1...Sc7
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 1...Sed8
- 2.Qd6#
- 1...Sf8
- 2.Qd6#
- 1...Re2!
- 1...Kd6
- 1.Qc3?
- Keys
- 1.Qb6!
- 1...Kd6
- 2.Qd8#
- 1...Rxd2
- 2.Qxc6#
- 1...Rxf4
- 2.Qxc6#
- 1...Sxf4
- 2.Qc5#
- 1...Rf1
- 2.Qxc6#
- 1...Re2
- 2.Qxc6#
- 1...Rg2
- 2.Qxc6#
- 1...Rh2
- 2.Qxc6#
- 1...Rf3
- 2.Qxc6#
- 1...Sb4
- 2.Qd6#
- 1...Scd4
- 2.Qd6#
- 1...Se5
- 2.Qd6#
- 1...Sa7
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...Sb8
- 2.Qd6#
- 1...Scd8
- 2.Qd6#
- 1...Sed4
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sg5
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Sg7
- 2.Qc5#
- 1...Sed8
- 2.Qc5#
- 1...Sf8
- 2.Qc5#
- 1...Kd6
- 1.Qb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 6
- ADDED MATES = 17
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::QAR1(B)
- S(e);N_GUARD::QAR1(B),XS(e)
- Tries
- Try
- Q(B);
- Vars
- R(a);XS(C)::QAB1(B),XS(e)
- R(a);XP(F)::QAB1(B),XS(e)
- R(a);::QAB1(B),XS(e)
- S(e);::QAB1(B)
- S(e);N_GUARD::QAR1(B),XS(e)
- Refutation
- K(d);P-FLIGHT,P_SPINS(e)
- Try
- Q(B);
- Vars
- K(d);P-FLIGHT,P_SPINS(e)::QAR2(B)
- R(a);XS(C)::QAB1(B),XS(f)
- R(a);XP(F)::QAB1(B),XS(f)
- S(f);OGATE,XP(F)::QAR1(B)
- R(a);::QAB1(B),XS(f)
- R(a);P_PINS(E)::QAB1(B),XS(f)
- S(e);N_GUARD::QAR1(B)
- S(e);N_GUARD::QAR1(B),XS(e)
- S(f);OGATE,SBLOCK::QAR1(B)
- S(f);OGATE::QAR1(B)
- Refutation
- R(a);
- Try
- Actual
- Q(B);
- Vars
- K(d);P-FLIGHT,P_SPINS(e)::QAR2(B)
- R(a);XS(C)::QAB1(B),XS(e)
- R(a);XP(F)::QAB1(B),XS(e)
- S(f);N_GUARD,XP(F)::QAR1(B)
- R(a);::QAB1(B),XS(e)
- R(a);P_PINS(E)::QAB1(B),XS(e)
- S(e);OGATE::QAR1(B)
- S(e);OGATE,SBLOCK::QAR1(B)
- S(f);N_GUARD::QAR1(B)
- S(f);N_GUARD::QAR1(B),XS(f)
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).