MESON Chess Problem Database
Problem Display
PID: 64161 (b7/6Q1/8/8/8/2R1B2K/7n/r6k w - - 0 1)
Kipping, Cyril Stanley
Chess, 1946
#2
4 + 4
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qxg1#
- 1...Ra2
- 2.Qg1#
- 1...Ra3
- 2.Qg1#
- 1...Ra4
- 2.Qg1#
- 1...Ra5
- 2.Qg1#
- 1...Ra6
- 2.Qg1#
- 1...Ra7
- 2.Qg1#
- 1...Bg2+
- 2.Qxg2#
- 1...Sf1
- 2.Qg1#
- 1...Sf3
- 2.Qg2#
- 1...Rg1
- Tries
- 1.Rc1+?
- 1...Sf1
- 2.Qg1#
- 1...Rxc1!
- 1...Sf1
- 1.Rc6?
- threat
- 2.Qg2#
- 1...Rg1
- 2.Qxg1#
- 1...Ra2
- 2.Qg1#
- 1...Sg4
- 2.Qxa1#
- 1...Bxc6!
- threat
- 1.Qg3?
- threat
- 2.Qxh2#
- 1...Bg2+
- 2.Qxg2#
- 1...Ra2
- 2.Qg1#
- 1...Sf1
- 2.Qg1#
- 1...Sf3
- 2.Qg2#
- 1...Sg4!
- threat
- 1.Rc1+?
- Keys
- 1.Rc2!
- threat
- 2.Rxh2#
- 1...Bg2+
- 2.Qxg2#
- 1...Ra2
- 2.Qg1#
- 1...Sf1
- 2.Qg1#
- 1...Sf3
- 2.Qg2#
- 1...Sg4
- 2.Qxa1#
- threat
- 1.Rc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(a);N_GUARD::QAR1(D),XR(a)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- R(a);N_GUARD::QAR1(D)
- B(d);CHECK,N_GUARD::QAB1(D),XB(d)
- S(c);S_CUTR(a)::QAR1(D)
- S(c);S_CUTB(d)::QAB1(D)
- Tries
- Try
- R(A);CHECK
- Vars
- S(c);P_SPINS(c)::QAR1(D)
- Refutation
- R(a);XR(A)
- Try
- R(A);
- Threat
- QAB1(D)
- Vars
- R(a);N_GUARD::QAR1(D),XR(a)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- S(c);N_GUARD::QAB1(D),XR(a)
- Refutation
- B(d);XR(A)
- Try
- Q(D);
- Threat
- QAR1(D),XS(c)
- Vars
- B(d);CHECK,N_GUARD::QAB1(D),XB(d)
- R(a);N_GUARD,SBLOCK::QAR1(D)
- S(c);S_CUTR(a)::QAR1(D)
- S(c);S_CUTB(d)::QAB1(D)
- Refutation
- S(c);
- Try
- Actual
- R(A);
- Threat
- R1(A),XS(c)
- Vars
- B(d);CHECK,N_GUARD::QAB1(D),XB(d)
- R(a);N_GUARD::QAR1(D)
- S(c);S_CUTR(a)::QAR1(D)
- S(c);S_CUTB(d)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XR(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).