MESON Chess Problem Database
Problem Display
PID: 161134 (3R1Q1B/K2N3B/p3kP2/2pnp3/2P5/2P1qnb1/8/6rb w - - 0 1)
Richter, Frank
Schach, 1984
#2
9 + 10
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sxc5#
- 1...Qd2
- 2.Sxc5#
- 1...Qf4
- 2.Sxc5#
- 1...Qg5
- 2.Sxc5#
- 1...Qh6
- 2.Sxc5#
- 1...Qe1
- 2.Sxc5#
- 1...Qe2
- 2.Sxc5#
- 1...Qxc3
- 2.Sxc5#
- 1...Qd3
- 2.Sxc5#
- 1...Qe4
- 2.Sxc5#
- 1...Sd4
- 2.Sxc5#
- 1...Sxc3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 1...Sf4
- 2.Qe7#
- 1...Sb6
- 2.Qe7#
- 1...Sxf6
- 2.Qxf6#
- 1...Sc7
- 2.Qe7#
- 1...Se7
- 2.Qxe7#
- 1...Qc1
- Tries
- 1.Sb6?
- threat
- 2.Rd6#
- 2.Qg8#
- 2.cxd5#
- 1...Sxc3
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sxb6
- 2.Rd6#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sxf6
- 2.Rd6#
- 2.Qxf6#
- 1...Qd2
- 2.Rd6#
- 2.Qg8#
- 1...Qd4
- 2.Rd6#
- 2.Qg8#
- 1...Qg5
- 2.Rd6#
- 2.cxd5#
- 1...Qd3
- 2.Rd6#
- 2.Qg8#
- 1...Qe4
- 2.Rd6#
- 2.Qg8#
- 1...Rd1
- 2.Rd6#
- 2.Qg8#
- 1...Be1
- 2.Rd6#
- 2.cxd5#
- 1...Bf2
- 2.Rd6#
- 2.cxd5#
- 1...Bh2
- 2.Rd6#
- 2.cxd5#
- 1...Bf4
- 2.Rd6#
- 2.cxd5#
- 1...Bh4
- 2.Rd6#
- 2.cxd5#
- 1...Se1
- 2.Rd6#
- 2.Qg8#
- 1...Sd2
- 2.Rd6#
- 2.Qg8#
- 1...Sh2
- 2.Rd6#
- 2.Qg8#
- 1...Sd4
- 2.Rd6#
- 2.Qg8#
- 1...Sh4
- 2.Rd6#
- 2.Qg8#
- 1...Sg5
- 2.Rd6#
- 1...Sb4
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sf4
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sc7
- 2.Rd6#
- 2.Qe7#
- 2.Qg8#
- 1...Se7
- 2.Qxe7#
- 1...e4!
- threat
- 1.Sb8?
- threat
- 2.Rd6#
- 2.Qg8#
- 2.cxd5#
- 1...Sxc3
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sxf6
- 2.Rd6#
- 2.Qxf6#
- 1...Qd2
- 2.Rd6#
- 2.Qg8#
- 1...Qd4
- 2.Rd6#
- 2.Qg8#
- 1...Qg5
- 2.Rd6#
- 2.cxd5#
- 1...Qd3
- 2.Rd6#
- 2.Qg8#
- 1...Qe4
- 2.Rd6#
- 2.Qg8#
- 1...Rd1
- 2.Rd6#
- 2.Qg8#
- 1...Be1
- 2.Rd6#
- 2.cxd5#
- 1...Bf2
- 2.Rd6#
- 2.cxd5#
- 1...Bh2
- 2.Rd6#
- 2.cxd5#
- 1...Bf4
- 2.Rd6#
- 2.cxd5#
- 1...Bh4
- 2.Rd6#
- 2.cxd5#
- 1...Se1
- 2.Rd6#
- 2.Qg8#
- 1...Sd2
- 2.Rd6#
- 2.Qg8#
- 1...Sh2
- 2.Rd6#
- 2.Qg8#
- 1...Sd4
- 2.Rd6#
- 2.Qg8#
- 1...Sh4
- 2.Rd6#
- 2.Qg8#
- 1...Sg5
- 2.Rd6#
- 1...Sb4
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sf4
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sb6
- 2.Rd6#
- 2.Re8#
- 2.Qe7#
- 2.Qe8#
- 2.Qg8#
- 1...Sc7
- 2.Rd6#
- 2.Qe7#
- 2.Qg8#
- 1...Se7
- 2.Qxe7#
- 1...e4!
- threat
- 1.Re8+?
- 1...Se7
- 2.Qxe7#
- 1...Kxd7!
- 1...Se7
- 1.Qd6+?
- 1...Kf7
- 2.Rf8#
- 2.Qxd5#
- 1...Kxd6!
- 1...Kf7
- 1.Qf7+?
- 1...Kd6
- 2.Sb8#
- 1...Kxf7!
- 1...Kd6
- 1.Qe8+?
- 1...Se7
- 2.Sf8#
- 2.Qxe7#
- 1...Kd6!
- 1...Se7
- 1.Sb6?
- Keys
- 1.Sxe5!
- threat
- 2.Qd6#
- 1...Kxe5
- 2.Qd6#
- 1...Qxe5
- 2.Qg8#
- 1...Bxe5
- 2.cxd5#
- 1...Sxe5
- 2.Rd6#
- 1...Se7
- 2.Qxe7#
- threat
- 1.Sxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 17
- Sets
- Q(c);N_GUARD::S(E),XP(f)
- Q(c);N_GUARD,XP(A)::S(E),XP(f)
- S(d);S_CUTQ(c)::S(E),XP(f)
- S(g);N_GUARD,XP(A)::QAR1(H)
- S(g);N_GUARD::QAR1(H)
- S(g);OGATE,XP(C)::QAR1(H),XS(g)
- S(g);N_GUARD::QAR1(H),XS(g)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(d);::R1(G)
- S(g);N_GUARD::QAR1(H),XS(g)
- Refutation
- P(h);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(d);::R1(G)
- S(g);N_GUARD::QAR1(H),XS(g)
- Refutation
- P(h);
- Try
- R(G);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR1(H),XS(g)
- Refutation
- K(j);S_FLIGHT,XS(E)
- Try
- Q(H);CHECK
- Refutation
- K(j);P-FLIGHT,XQ(H)
- Try
- Q(H);CHECK
- Vars
- K(j);P-FLIGHT::R(G)+S(E)
- Refutation
- K(j);S_FLIGHT,XQ(H)
- Try
- Q(H);CHECK
- Refutation
- K(j);P-FLIGHT
- Try
- Actual
- S(E);XP(h)
- Threat
- QAR1(H)
- Vars
- K(j);P-FLIGHT,XS(E)::QAB1(H)
- Q(c);SBLOCK,XS(E)::QAB(H)
- B(e);SBLOCK,XS(E)::P(B),XS(g)
- S(d);SBLOCK,XS(E)::R1(G)
- S(g);N_GUARD::QAR1(H),XS(g)
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).