MESON Chess Problem Database
Problem Display
PID: 8053 (2B2r2/4p3/3p4/1Knk4/1R1P4/3P3N/8/4rNQ1 w - - 0 1)
Rice, John Michael
Chess Problems for Solving, 1995
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Se3#
- 1...Rb1
- 2.Se3#
- 1...Rc1
- 2.Se3#
- 1...Rd1
- 2.Se3#
- 1...Re3
- 2.Sxe3#
- 1...Rf4
- 2.Sxf4#
- 1...Rxc8
- 2.Sf4#
- 1...Rd8
- 2.Sf4#
- 1...Re8
- 2.Sf4#
- 1...Rg8
- 2.Sf4#
- 1...Rh8
- 2.Sf4#
- 1...Se6
- 2.Bb7#
- 1...Ra1
- Tries
- 1.Qh1+?
- 1...Re4
- 2.Se3#
- 1...Rf3
- 2.Sf4#
- 1...Se4!
- 1...Re4
- 1.Qg5+?
- 1...Re5
- 2.Se3#
- 1...Rf5
- 2.Sf4#
- 1...e5!
- 1...Re5
- 1.Qg8+?
- 1...Re6
- 2.Se3#
- 1...Rf7
- 2.Sf4#
- 1...Rxg8
- 2.Sf4#
- 1...Se6
- 2.Bb7#
- 1...e6!
- 1...Re6
- 1.Qh1+?
- Keys
- 1.Qg2+!
- 1...Re4
- 2.Se3#
- 1...Rf3
- 2.Sf4#
- 1...Se4
- 2.Qa2#
- 1...Re4
- 1.Qg2+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- R(a);N_GUARD::S(A)
- R(a);N_GUARD,P_PINR(E)::S(A)
- R(a);N_GUARD::S(A),XR(a)
- R(f);N_GUARD::S(D),XR(f)
- R(f);N_GUARD,XB(H)::S(D)
- R(f);N_GUARD::S(D)
- S(b);N_GUARD,SBLOCK::B(H)
- Tries
- Try
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(A)
- R(f);P_SPINR(f)::S(D)
- Refutation
- S(b);P_SPINS(b)
- Try
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(A)
- R(f);P_SPINR(f)::S(D)
- Refutation
- P(e);P_SPINP(e)
- Try
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(A)
- R(f);P_SPINR(f)::S(D)
- R(f);XQ(B)::S(D)
- S(b);P_SPINS(b)::B(H)
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(A)
- R(f);P_SPINR(f)::S(D)
- S(b);N_GUARD,P_SPINS(b)::QAB(B)
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).