MESON Chess Problem Database
Problem Display
PID: 65216 (n6K/4p3/3RN1b1/r3k2p/1Q2NpPB/3pr3/1b6/8 w - - 0 1)
Rice, John Michael
5th HM., StrateGems, 2006
#2
7 + 10
| 145 | StrateGems | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Qd4#
- 1...Ba3
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...f3
- 2.Bg3#
- 1...Bc1
- Tries
- 1.Sd2?
- threat
- 2.Qxf4#
- 1...Rf3
- 2.Sxf3#
- 1...Re4
- 2.Sf3#
- 1...Ra4
- 2.Qc5#
- 1...Bd4
- 2.Qxd4#
- 1...Be4
- 2.Sc4#
- 1...f3
- 2.Qf4#
- 1...exd6!
- threat
- 1.Sf6?
- threat
- 2.Sd7#
- 2.Qxf4#
- 1...hxg4
- 2.Qxf4#
- 1...exf6
- 2.Qxf4#
- 1...Rc5
- 2.Qxc5#
- 2.Qxf4#
- 1...Rf3
- 2.Sd7#
- 1...Re4
- 2.Sd7#
- 1...Ra4
- 2.Sd7#
- 2.Qc5#
- 1...Ra7
- 2.Qc5#
- 2.Qxf4#
- 1...Bd4
- 2.Qxd4#
- 1...Be4
- 2.Sd7#
- 1...Be8
- 2.Qxf4#
- 1...Sb6
- 2.Qxf4#
- 1...f3
- 2.Sd7#
- 2.Qf4#
- 1...exd6!
- threat
- 1.Bxe7?
- threat
- 2.Bf6#
- 1...Rxe4
- 2.Qxa5#
- 1...Bxe4
- 2.Qxb2#
- 1...Bd4
- 2.Qxd4#
- 1...hxg4!
- threat
- 1.Sd2?
- Keys
- 1.S6g5!
- threat
- 2.Qxa5#
- 2.Qxb2#
- 1...Rxe4
- 2.Sf3#
- 1...Bxe4
- 2.Sf7#
- 1...hxg4
- 2.Qxa5#
- 1...exd6
- 2.Qxd6#
- 1...f3
- 2.Bg3#
- 1...Re2
- 2.Sf3#
- 2.Qxa5#
- 1...Ra1
- 2.Qc5#
- 2.Qxb2#
- 2.Qb5#
- 1...Ra2
- 2.Qc5#
- 2.Qb5#
- 1...Ra3
- 2.Qc5#
- 2.Qb5#
- 1...Ra4
- 2.Qc5#
- 2.Qb5#
- 1...Rb5
- 2.Qxb5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Re6#
- 1...Ra6
- 2.Qc5#
- 2.Qxb2#
- 2.Qb5#
- 1...Ra7
- 2.Qc5#
- 2.Qxb2#
- 2.Qb5#
- 1...Ba1
- 2.Qxa5#
- 1...Bc1
- 2.Qc3#
- 2.Qxa5#
- 2.Qd4#
- 1...Ba3
- 2.Qc3#
- 2.Qd4#
- 1...Bc3
- 2.Qxc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bf7
- 2.Sxf7#
- 2.Qxb2#
- 1...Be8
- 2.Qxb2#
- 1...Sb6
- 2.Qxb2#
- 1...Sc7
- 2.Qxb2#
- 1...d2
- 2.Qxa5#
- threat
- 1.S6g5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 2
- Sets
- B(a);N_GUARD::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- P(d);OGATEB::B(D)
- Tries
- Try
- S(B);
- Threat
- QAB1(A),XP(d)
- Vars
- R(c);N_GUARD::S(B),XR(c)
- R(c);N_GUARD::S(B)
- R(e);N_GUARD::QAR2(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(h);SBLOCK::S(B)
- P(d);::QAB1(A)
- Refutation
- P(i);XR(E)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(g);XP(C)::QAB1(A),XP(d)
- P(i);XS(B)::QAB1(A),XP(d)
- R(c);::S(B)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(h);::S(B)
- B(h);::QAB1(A),XP(d)
- S(j);::QAB1(A),XP(d)
- Refutation
- P(i);XR(E)
- Try
- B(D);XP(i)
- Threat
- B(D)
- Vars
- R(c);SBLOCK,XS(B)::QAR(A),XR(e)
- B(h);SBLOCK,XS(B)::QAB(A),XB(a)
- B(a);N_GUARD::QAB1(A),XB(a)
- Refutation
- P(g);XP(C)
- Try
- Actual
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XS(B)::S(F)
- B(h);N_GUARD,XS(B)::S(F)
- P(g);XP(C)::QAR(A),XR(e)
- P(i);OGATE,XR(E)::QAB1(A),XP(i)
- P(d);OGATEB::B(D)
- R(e);N_GUARD::QAR(A),XR(e)
- R(e);N_GUARD::QAR2(A),XR(e)
- R(e);SBLOCK::R1(E)
- B(a);::QAR(A),XR(e)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(h);::QAB(A),XB(a)
- S(j);::QAB(A),XB(a)
- P(b);::QAR(A),XR(e)
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).