MESON Chess Problem Database
Problem Display
PID: 160895 (6B1/K2p2Q1/N5p1/Nkp4R/2p2r2/R7/3rn3/6q1 w - - 0 1)
Leiss, Hans-Dieter
Source?, 1998
#2
7 + 9
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Rxc5#
- 1...Qa1
- 2.Rxc5#
- 1...Qb1
- 2.Rxc5#
- 1...Qc1
- 2.Rxc5#
- 1...Qd1
- 2.Rxc5#
- 1...Qe1
- 2.Rxc5#
- 1...Qf1
- 2.Rxc5#
- 1...Qh1
- 2.Rxc5#
- 1...Qg2
- 2.Rxc5#
- 1...Qg3
- 2.Rxc5#
- 1...Qg4
- 2.Rxc5#
- 1...Rd1
- 2.Qb2#
- 1...Ra2
- 2.Qxd7#
- 1...Rb2
- 2.Qxb2#
- 2.Qxd7#
- 1...Rc2
- 2.Qxd7#
- 1...Rdd4
- 2.Rxc5#
- 1...Rd5
- 2.Qb2#
- 1...Rd6
- 2.Qb2#
- 1...Rf1
- 2.Bxc4#
- 1...Rf2
- 2.Bxc4#
- 2.Rxc5#
- 1...Rf3
- 2.Bxc4#
- 1...Rfd4
- 2.Rxc5#
- 1...Rf5
- 2.Bxc4#
- 1...Rf6
- 2.Bxc4#
- 1...Rf8
- 2.Bxc4#
- 1...Sd4
- 2.Bxc4#
- 2.Rxc5#
- 1...d5
- 2.Qb7#
- 2.Qd7#
- 1...d6
- 2.Qb7#
- 2.Qd7#
- 1...Qh2
- Tries
- 1.Bd5?
- threat
- 2.Qxd7#
- 1...Rxd5
- 2.Qb2#
- 1...Rf6
- 2.Bxc4#
- 1...Rf7
- 2.Bxc4#
- 1...Sd4
- 2.Bxc4#
- 1...d6
- 2.Bc6#
- 2.Qb7#
- 2.Qd7#
- 1...Qg4!
- threat
- 1.Qc3?
- threat
- 2.Sc7#
- 2.Qb4#
- 1...gxh5
- 2.Sc7#
- 1...Qb1
- 2.Sc7#
- 2.Rxc5#
- 1...Qg5
- 2.Sc7#
- 1...Rb2
- 2.Sc7#
- 2.Qxb2#
- 1...Rd5
- 2.Sc7#
- 2.Qb2#
- 1...Rf5
- 2.Sc7#
- 2.Bxc4#
- 2.Qxc4#
- 1...g5
- 2.Sc7#
- 1...d5
- 2.Sc7#
- 1...Sxc3!
- threat
- 1.Qf6?
- threat
- 2.Qb6#
- 1...Rxf6
- 2.Bxc4#
- 1...Rd6
- 2.Qb2#
- 1...d6!
- threat
- 1.Qf8?
- threat
- 2.Qb8#
- 1...Rxf8
- 2.Bxc4#
- 1...Qh1
- 2.Rxc5#
- 2.Qxc5#
- 1...Qg2
- 2.Rxc5#
- 2.Qxc5#
- 1...Rf6
- 2.Bxc4#
- 1...Rd6!
- threat
- 1.Qxg6?
- threat
- 2.Qb6#
- 1...Qxg6
- 2.Rxc5#
- 1...Rf6
- 2.Bxc4#
- 1...d6
- 2.Qe8#
- 1...Rd6!
- threat
- 1.Bd5?
- Keys
- 1.Qe5!
- threat
- 2.Qb8#
- 1...Qh1
- 2.Qxc5#
- 1...Qg2
- 2.Qxc5#
- 1...Rd6
- 2.Qb2#
- 1...Rf6
- 2.Bxc4#
- 1...Rf8
- 2.Bxc4#
- 1...d6
- 2.Qe8#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 18
- Sets
- Q(a);N_GUARD::R1(C),XP(g)
- R(b);N_GUARD::QAR(F)
- R(b);N_GUARD::QAB(F),XP(i)
- R(b);S_CUTQ(a)::R1(C),XP(g)
- R(b);N_GUARD,N_SPINP(g)::QAR(F)
- R(e);N_GUARD::B(G),XP(d)
- R(e);S_CUTQ(a)::R1(C),XP(g)
- R(e);N_GUARD,N_SPINP(g)::B(G),XP(d)
- Tries
- Try
- B(G);N_PINP(g)
- Threat
- QAB(F),XP(i)
- Vars
- R(b);N_GUARD,XB(G)::QAR(F)
- R(e);N_GUARD::B(G),XP(d)
- S(c);S_CUTR(e)::B(G),XP(d)
- Refutation
- Q(a);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(h);N_SPINP(g),XR(C)::S(D)
- Q(a);N_SPINP(g)::S(D)
- P(h);N_SPINP(g)::S(D)
- P(i);N_SPINP(g)::S(D)
- Refutation
- S(c);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- R(e);N_GUARD,XQ(F)::B(G),XP(d)
- R(b);N_GUARD::QAR(F)
- Refutation
- P(i);
- Try
- Q(F);
- Threat
- QAR(F)
- Vars
- R(e);N_GUARD,XQ(F)::B(G),XP(d)
- R(e);N_GUARD::B(G),XP(d)
- Refutation
- R(b);
- Try
- Q(F);XP(h)
- Threat
- QAR1(F)
- Vars
- Q(a);N_GUARD,XQ(F)::R1(C),XP(g)
- R(e);N_GUARD::B(G),XP(d)
- P(i);OGATEB::QAB(F)
- Refutation
- R(b);
- Try
- Actual
- Q(F);
- Threat
- QAR(F)
- Vars
- Q(a);N_GUARD::QAR1(F),XP(g)
- R(b);N_GUARD::QAR(F)
- R(e);N_GUARD::B(G),XP(d)
- P(i);OGATEB::QAB(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).