MESON Chess Problem Database
Problem Display
PID: 165293 (3r4/7b/8/1NN5/1QB2p1K/R2pkP2/R3p1P1/3rB3 w - - 0 1)
Barnes, Barry Peter
British Chess Magazine, 2017
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd2#
- 1...Rb1
- 2.Qd2#
- 1...Rc1
- 2.Qd2#
- 1...Rd2
- 2.Qxd2#
- 1...Ra1
- Tries
- 1.Se4?
- threat
- 2.Bf2#
- 1...Rxe1
- 2.Qd2#
- 1...Bxe4!
- threat
- 1.Bxd3?
- threat
- 2.Rxe2#
- 1...R1xd3
- 2.Qd2#
- 1...R8xd3
- 2.Qd4#
- 1...Bxd3
- 2.Qe4#
- 1...Rd2
- 2.Qxd2#
- 1...Rxe1!
- threat
- 1.Qb2?
- threat
- 2.Qxe2#
- 1...Rd2
- 2.Qxd2#
- 1...Rxe1!
- threat
- 1.Se4?
- Keys
- 1.Sxd3!
- threat
- 2.Bf2#
- 1...Rxe1
- 2.Qd2#
- 1...R1xd3
- 2.Qd2#
- 1...R8xd3
- 2.Qc5#
- 1...Bxd3
- 2.Qe7#
- threat
- 1.Sxd3!
After E. Mygdal & M. Griva.
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::QAB1(F)
- R(a);N_GUARD::QAB1(F),XR(a)
- Tries
- Try
- S(J);
- Threat
- B(A)
- Vars
- R(a);N_GUARD,XB(A)::QAB1(F)
- Refutation
- B(f);XS(J)
- Try
- B(G);XP(c)
- Threat
- R1(B),XP(b)
- Vars
- R(a);N_GUARD,P_SPINR(a),XB(G)::QAB1(F)
- R(g);N_GUARD,P_SPINR(g),XB(G)::QAB1(F)
- B(f);N_GUARD,P_SPINB(f),XB(G)::QAR1(F)
- R(a);N_GUARD::QAB1(F),XR(a)
- Refutation
- R(a);XB(A)
- Try
- Q(F);
- Threat
- QAR1(F),XP(b)
- Vars
- R(a);N_GUARD::QAB1(F),XR(a)
- Refutation
- R(a);XB(A)
- Try
- Actual
- S(J);XP(c)
- Threat
- B(A)
- Vars
- R(a);N_GUARD,XB(A)::QAB1(F)
- R(a);N_GUARD,P_SPINR(a),XS(J)::QAB1(F)
- R(g);N_GUARD,P_SPINR(g),XS(J)::QAB(F)
- B(f);N_GUARD,P_SPINB(f),XS(J)::QAR(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).