MESON Chess Problem Database
Problem Display
PID: 175768 (2bB2RK/3R2pP/n1k3P1/1pP2q2/2NPP3/1BQ5/8/8 w - - 0 1)
Pradignat, Emile Leonard
Philadelphia Times, 1898
#2
12 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Se5#
- 1...Qg4
- 2.Se5#
- 1...Qxg6
- 2.Se5#
- 1...Qxd7
- 2.Sa5#
- 1...Qf1
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qf3
- 2.Se5#
- 1...Qxc5
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qf7
- 2.Se5#
- 1...Qf8
- 2.Se5#
- 1...Bb7
- 2.Rd6#
- 1...Bxd7
- 2.Sa5#
- 1...Sb4
- 2.Rc7#
- 1...Sxc5
- 2.Rc7#
- 1...Sc7
- 2.Rxc7#
- 1...Sb8
- 2.Rc7#
- 1...bxc4
- 2.Ba4#
- 1...b4
- 2.Ba4#
- 1...Qh3
- Tries
- 1.Re7?
- threat
- 2.Sa5#
- 1...Sxc5
- 2.Rc7#
- 1...bxc4
- 2.Ba4#
- 1...b4
- 2.Ba4#
- 1...Qxc5!
- threat
- 1.Rgxg7?
- threat
- 2.Sa5#
- 2.Rd6#
- 1...Qxg6
- 2.Sa5#
- 2.Se5#
- 1...Qxd7
- 2.Sa5#
- 1...Qxc5
- 2.Sa5#
- 2.Se5#
- 1...Bxd7
- 2.Sa5#
- 1...bxc4
- 2.Ba4#
- 1...Qf7
- 2.Se5#
- 1...Sc7
- 2.Sa5#
- 2.Rxc7#
- 1...b4
- 2.Ba4#
- 1...Qe6
- 2.Sa5#
- 1...Qf4
- 2.Sa5#
- 1...Qd5
- 2.Sa5#
- 2.exd5#
- 1...Qe5
- 2.Sa5#
- 2.Sxe5#
- 1...Qf6
- 2.Sa5#
- 1...Qf8+!
- threat
- 1.d5+?
- 1...Kxc5
- 2.Sb2#
- 2.Sd2#
- 2.Sa3#
- 2.Se3#
- 2.Sa5#
- 2.Se5#
- 2.Sb6#
- 2.Sd6#
- 2.Bb6#
- 2.Be7#
- 1...Kxd7
- 2.Sb6#
- 2.c6#
- 1...Qxd5!
- 1...Kxc5
- 1.exf5?
- threat
- 2.Se5#
- 1...Kxd7
- 2.Se5#
- 1...Bxd7
- 2.Sa5#
- 2.Qf3#
- 1...bxc4
- 2.Ba4#
- 1...b4
- 2.Ba4#
- 1...Sc7!
- threat
- 1.Re7?
- Keys
- 1.Qh3!
- 1...Kxd7
- 2.Se5#
- 1...Qxh3
- 2.Se5#
- 1...Qxe4
- 2.Sa5#
- 1...Qxg6
- 2.Sa5#
- 2.Se5#
- 1...Qxd7
- 2.Sa5#
- 1...Qxc5
- 2.Sa5#
- 1...Bxd7
- 2.Sa5#
- 1...Sxc5
- 2.Rc7#
- 1...bxc4
- 2.Ba4#
- 1...Sc7
- 2.Rxc7#
- 1...b4
- 2.Ba4#
- 1...Qg4
- 2.Se5#
- 1...Qe6
- 2.Qxe6#
- 1...Qf1
- 2.Sa5#
- 2.Se5#
- 2.Qe6#
- 1...Qf2
- 2.Sa5#
- 2.Se5#
- 2.Qe6#
- 1...Qf3
- 2.Sa5#
- 2.Se5#
- 2.Qe6#
- 1...Qf4
- 2.Sa5#
- 1...Qd5
- 2.Sa5#
- 2.exd5#
- 1...Qe5
- 2.Sa5#
- 2.Sxe5#
- 1...Qg5
- 2.Sa5#
- 2.Qe6#
- 1...Qh5
- 2.Sa5#
- 2.Qe6#
- 1...Qf6
- 2.Sa5#
- 1...Qf7
- 2.Sa5#
- 2.Se5#
- 1...Qf8
- 2.Sa5#
- 2.Se5#
- 1...Bb7
- 2.Rd6#
- 1...Sb4
- 2.Rc7#
- 1...Sb8
- 2.Rc7#
- 1...Kxd7
- 1.Qh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 7
- Sets
- Q(b);N_GUARD,P_PINP(I)::S(C)
- Q(b);N_GUARD::S(C)
- Q(b);N_GUARD,XP(G)::S(C)
- Q(b);SBLOCK,XR(H)::S(C)
- Q(b);N_GUARD,XP(F)::S(C)
- Q(b);N_GUARD::S(C),XQ(b)
- Q(b);N_GUARD,P_PINR(K)::S(C)
- B(f);SBLOCK::R1(H)
- B(f);SBLOCK,XR(H)::S(C)
- S(c);N_GUARD::R1(H)
- S(c);N_GUARD,XP(F)::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
- P(a);OGATEB,XS(C)::B(A)
- P(a);OGATEB::B(A)
- Tries
- Try
- R(H);
- Threat
- S(C)
- Vars
- S(c);N_GUARD,XP(F)::R1(H)
- P(a);OGATEB,XS(C)::B(A)
- P(a);OGATEB::B(A)
- Refutation
- Q(b);XP(F)
- Try
- R(K);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(b);XR(H)::S(C)
- B(f);XR(H)::S(C)
- P(a);OGATEB,XS(C)::B(A)
- Q(b);N_GUARD::S(C)
- P(a);OGATEB::B(A)
- Q(b);::S(C)
- Q(b);P_PINR(K)::S(C)
- Refutation
- Q(b);CHECK
- Try
- P(D);CHECK
- Refutation
- Q(b);XP(D)
- Try
- P(E);XQ(b)
- Threat
- S(C)
- Vars
- K(d);S_FLIGHT,XR(H)::S(C)
- P(a);OGATEB,XS(C)::B(A)
- P(a);OGATEB::B(A)
- Refutation
- S(c);
- Try
- Actual
- Q(B);
- Vars
- K(d);P_SPINQ(b),S_FLIGHT,XR(H)::S(C)
- Q(b);N_GUARD,P_PINP(I),XQ(B)::S(C)
- Q(b);XP(E)::S(C)
- Q(b);XR(H)::S(C)
- Q(b);XP(F)::S(C)
- B(f);SBLOCK,XR(H)::S(C)
- S(c);N_GUARD,XP(F)::R1(H)
- P(a);OGATEB,XS(C)::B(A)
- S(c);N_GUARD::R1(H),XS(c)
- P(a);OGATEB::B(A)
- Q(b);N_GUARD::S(C)
- Q(b);OGATE::QAR2(B),XQ(b)
- Q(b);::S(C)
- B(f);SBLOCK::R1(H)
- S(c);N_GUARD::R1(H)
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).