MESON Chess Problem Database
Problem Display
PID: 82273 (Q1b3q1/1N1rP1p1/2n3R1/1r1k4/1nR5/1N1P4/7B/6K1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Var Martin, 1984
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Rxc5#
- 1...Rb6
- 2.Rc5#
- 1...Rbxb7
- 2.Rc5#
- 1...Rd6
- 2.Rxd6#
- 1...Rdxb7
- 2.Rd6#
- 1...Rc7
- 2.Rd6#
- 1...Rxe7
- 2.Rd6#
- 1...Bxb7
- 2.Qxg8#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sxe7
- 2.Rd4#
- 1...Sb8
- 2.Rd4#
- 1...Sd8
- 2.Rd4#
- 1...Rc5
- Tries
- 1.S7c5?
- threat
- 2.Rd4#
- 2.Rg5#
- 1...Rxc5
- 2.Rd4#
- 2.Rxc5#
- 1...Rxe7
- 2.Rd4#
- 2.Rd6#
- 1...Sxd3
- 2.Rd4#
- 1...Qe6
- 2.Rd4#
- 1...Qf7
- 2.Rd4#
- 1...Qh7
- 2.Rd4#
- 1...Qf8
- 2.Rd4#
- 1...Rd6
- 2.Rd4#
- 2.Rxd6#
- 1...Ra7
- 2.Rd4#
- 2.Rd6#
- 1...Rdb7
- 2.Rd6#
- 1...Rc7
- 2.Rd4#
- 2.Rd6#
- 1...Rd8
- 2.Rd4#
- 1...Bb7
- 2.Qxg8#
- 1...Sc2
- 2.Rg5#
- 2.Qxc6#
- 1...Rbb7!
- threat
- 1.Sd6?
- threat
- 2.Rd4#
- 1...Rbb7
- 2.Rc5#
- 1...Bb7
- 2.Qxg8#
- 1...Sc2
- 2.Qxc6#
- 1...Rdb7!
- threat
- 1.Sd8?
- threat
- 2.Rd4#
- 2.Rg5#
- 1...Qxd8
- 2.Rd4#
- 1...Rxe7
- 2.Rd4#
- 2.Rd6#
- 1...Rxd8
- 2.Rd4#
- 1...Sxd3
- 2.Rd4#
- 2.Qxc6#
- 1...Qe6
- 2.Rd4#
- 1...Qf7
- 2.Rd4#
- 1...Qh7
- 2.Rd4#
- 1...Qf8
- 2.Rd4#
- 1...Rbb7
- 2.Rc5#
- 1...Rd6
- 2.Rd4#
- 2.Rxd6#
- 1...Ra7
- 2.Rd4#
- 2.Rd6#
- 1...Rdb7
- 2.Rd6#
- 1...Rc7
- 2.Rd4#
- 2.Rd6#
- 1...Sc2
- 2.Rg5#
- 2.Qxc6#
- 1...Bb7!
- threat
- 1.Rg5+?
- 1...Se5
- 2.Rxe5#
- 1...Ke6!
- 1...Se5
- 1.e8Q?
- threat
- 2.Qe4#
- 1...Qe6
- 2.Qxe6#
- 1...Re7
- 2.Rd6#
- 1...Se5
- 2.Rd4#
- 2.Qxe5#
- 1...Se7
- 2.Rd4#
- 1...Qxe8!
- threat
- 1.S7c5?
- Keys
- 1.S7a5!
- threat
- 2.Rd4#
- 1...Rbb7
- 2.Rc5#
- 1...Rdb7
- 2.Rd6#
- 1...Bb7
- 2.Qxg8#
- 1...Sc2
- 2.Qxc6#
- threat
- 1.S7a5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::R1(E),XR(b)
- R(b);N_GUARD::R1(E)
- R(b);N_GUARD,XS(G)::R1(E)
- R(e);N_GUARD::R1(F),XR(e)
- R(e);N_GUARD,XS(G)::R1(F)
- R(e);N_GUARD::R1(F)
- R(e);N_GUARD,XP(H)::R1(F)
- B(g);OGATE,XS(G)::QAB(I),XQ(h)
- S(d);N_GUARD::R1(E),XS(d)
- S(d);N_GUARD::R1(E)
- S(d);N_GUARD,XP(H)::R1(E)
- Tries
- Try
- S(G);P_PINS(d)
- Threat
- DUALS(2)
- Vars
- S(a);XP(D)::R1(E)
- Q(h);::R1(E)
- R(e);N_GUARD,N_SPINS(d)::R1(F)
- R(e);::R1(E)
- B(g);N_SPINS(d),OGATE::QAB(I),XQ(h)
- Refutation
- R(b);N_SPINS(d)
- Try
- S(G);P_PINS(d)
- Threat
- R1(E)
- Vars
- R(b);N_GUARD,N_SPINS(d)::R1(E)
- B(g);N_SPINS(d),OGATE::QAB(I),XQ(h)
- S(a);N_GUARD::QAB1(I),XS(d)
- Refutation
- R(e);N_SPINS(d)
- Try
- S(G);P_PINS(d)
- Threat
- DUALS(2)
- Vars
- Q(h);XS(G)::R1(E)
- R(e);XS(G)::R1(E)
- Q(h);::R1(E)
- R(b);N_GUARD,N_SPINS(d)::R1(E)
- R(e);N_GUARD,N_SPINS(d)::R1(F)
- Refutation
- B(g);N_SPINS(d)
- Try
- R(F);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::R1(F),XS(d)
- Refutation
- K(c);S_FLIGHT
- Try
- P(H);
- Threat
- QAB1(H)
- Vars
- Q(h);N_GUARD::QAB1(H),XQ(h)
- R(e);N_GUARD::R1(F)
- S(d);N_GUARD::R1(E)
- Refutation
- Q(h);XQ(H)
- Try
- Actual
- S(G);P_PINS(d)
- Threat
- R1(E)
- Vars
- R(b);N_GUARD,N_SPINS(d)::R1(E)
- R(e);N_GUARD,N_SPINS(d)::R1(F)
- B(g);N_SPINS(d),OGATE::QAB(I),XQ(h)
- S(a);N_GUARD::QAB1(I),XS(d)
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).