MESON Chess Problem Database
Problem Display
PID: 241084 (q1r1k1K1/1p6/N3P3/6B1/2n5/6Q1/8/2b1r3 w - - 0 1)
Armeni, Alberto
Best Problems, 2021
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Sc7#
- 1...Rd8
- 2.Sc7#
- 1...Rc7
- Tries
- 1.Qd6?
- threat
- 2.Qe7#
- 2.Qf8#
- 2.Qd7#
- 1...Rxe6
- 2.Qxe6#
- 1...Bxg5
- 2.Qf8#
- 2.Qd7#
- 1...Rf1
- 2.Qe7#
- 2.Qd7#
- 1...Rd1
- 2.Qe7#
- 2.Qf8#
- 1...Rc7
- 2.Sxc7#
- 2.Qf8#
- 1...Rd8
- 2.Sc7#
- 2.Qe7#
- 2.Qf8#
- 1...Ba3
- 2.Qd7#
- 1...Se5
- 2.Qe7#
- 2.Qf8#
- 1...Sb6
- 2.Qe7#
- 2.Qf8#
- 1...Sxd6!
- threat
- 1.Qf3?
- threat
- 2.Qh5#
- 2.Qf7#
- 2.Qf8#
- 1...Rxe6
- 2.Qf7#
- 1...Bxg5
- 2.Qf8#
- 1...Rh1
- 2.Qf7#
- 2.Qf8#
- 1...Rc7
- 2.Sxc7#
- 2.Qf8#
- 1...Ba3
- 2.Qh5#
- 2.Qf7#
- 1...Bf4
- 2.Qh5#
- 1...Se5
- 2.Qf8#
- 1...Sd6
- 2.Qf8#
- 1...Rf1!
- threat
- 1.Qd6?
- Keys
- 1.Qc7!
- threat
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Rxe6
- 2.Qf7#
- 1...Rxc7
- 2.Sxc7#
- 1...Bxg5
- 2.Qd7#
- 1...Rf1
- 2.Qd7#
- 2.Qe7#
- 1...Rd1
- 2.Qe7#
- 2.Qf7#
- 1...Rd8
- 2.Qe7#
- 2.Qf7#
- 1...Ba3
- 2.Qd7#
- 2.Qf7#
- 1...Se5
- 2.Qe7#
- 1...Sb6
- 2.Qe7#
- 2.Qf7#
- 1...Sd6
- 2.Qd7#
- 2.Qe7#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(f);N_GUARD::S(C),XR(f)
- R(f);N_GUARD::S(C)
- Tries
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- B(a);::QAB1(A)
- Refutation
- S(c);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(b);XP(D)::QAB1(A)
- B(a);XB(B)::QAR1(A)
- B(a);::QAB(A)
- S(c);::QAR1(A)
- Refutation
- R(b);
- Try
- Actual
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(b);XP(D)::QAB1(A)
- R(f);XQ(A)::S(C),XR(f)
- B(a);XB(B)::QAB1(A)
- S(c);::QAR1(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).