MESON Chess Problem Database
Problem Display
PID: 84991 (8/4N1p1/3R2p1/4p3/1KB1knQp/4P2r/4pr2/B3Nn2 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Kudesnik, 1991
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3
- 2.Bd5#
- 1...Sxe3
- 2.Bd3#
- 1...Rxe3
- Tries
- 1.Sf5?
- threat
- 2.Bd3#
- 2.Bd5#
- 1...Rxe3
- 2.Bd5#
- 1...Sxe3
- 2.Bd3#
- 1...gxf5!
- threat
- 1.Bd4?
- threat
- 2.Bd3#
- 2.Bd5#
- 1...Sxe3
- 2.Bd3#
- 1...exd4
- 2.Re6#
- 1...Rxe3!
- threat
- 1.Rd4+?
- 1...Kxe3
- 2.Sc2#
- 1...exd4!
- 1...Kxe3
- 1.Qf5+?
- 1...Kxe3
- 2.Qxe5#
- 1...gxf5!
- 1...Kxe3
- 1.Qxf4+?
- 1...exf4
- 2.Re6#
- 1...Rxf4!
- 1...exf4
- 1.Sf5?
- Keys
- 1.Qg5!
- threat
- 2.Qxe5#
- 1...Sd3+
- 2.Bxd3#
- 1...Sd5+
- 2.Bxd5#
- 1...Kxe3
- 2.Qxe5#
- threat
- 1.Qg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(d);SBLOCK,XP(C)::B(E)
- S(a);SBLOCK,XP(C)::B(E)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(d);XP(C)::B(E)
- S(a);XP(C)::B(E)
- Refutation
- P(i);XS(H)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- S(a);XP(C)::B(E)
- P(h);OGATEB,XB(A)::R(G)
- Refutation
- R(d);XP(C)
- Try
- R(G);CHECK
- Vars
- K(e);N_SPINS(f),P-FLIGHT,XP(C)::S(B)
- Refutation
- P(h);XR(G)
- Try
- Q(F);CHECK,N_PINS(f)
- Vars
- K(e);P-FLIGHT,XP(C)::QAR2(F),XP(h)
- Refutation
- P(i);XQ(F)
- Try
- Q(F);CHECK,XS(f)
- Vars
- P(h);S_CUTR(c),XQ(F)::R(G)
- Refutation
- R(c);XQ(F)
- Try
- Actual
- Q(F);N_PINS(f)
- Threat
- QAR1(F),XP(h)
- Vars
- S(f);CHECK,N_GUARD::B(E),XS(f)
- K(e);P-FLIGHT,P_SPINS(f),XP(C)::QAR2(F),XP(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).