MESON Chess Problem Database
Problem Display
PID: 177872 (8/2P4K/2Q5/2pPk3/R2p2P1/B2ppB2/rn1N1b2/8 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Sahs (Latvia), 1990
#2
9 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...c4
- 2.Qd6#
- 1...c4
- Tries
- 1.Kg6?
- threat
- 2.Qf6#
- 1...Kf4
- 2.Qd6#
- 1...Bh4!
- threat
- 1.Se4?
- threat
- 2.Qd6#
- 1...Kf4
- 2.Qf6#
- 1...Sc4!
- threat
- 1.Ra6?
- threat
- 2.Qd6#
- 2.Qf6#
- 1...Bh4
- 2.Qd6#
- 1...Sc4
- 2.Qf6#
- 1...Kf4!
- threat
- 1.g5?
- threat
- 2.Qf6#
- 1...Kf5
- 2.Qf6#
- 1...Kf4!
- threat
- 1.c8Q?
- threat
- 2.Qf5#
- 2.Q8c7#
- 2.Qb8#
- 1...Sc4
- 2.Qf5#
- 1...Kf4!
- threat
- 1.Kg6?
- Keys
- 1.Rxd4!
- threat
- 2.Re4#
- 1...Kxd4
- 2.Qf6#
- 1...cxd4
- 2.Qd6#
- threat
- 1.Rxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(g);::QAB1(G)
- Tries
- Try
- K(I);S_FLIGHT
- Threat
- QAB1(G)
- Vars
- K(h);P_SPINP(f),S_FLIGHT::QAB(G)
- Refutation
- B(c);
- Try
- S(A);
- Threat
- QAB1(G)
- Vars
- K(h);S_FLIGHT::QAR2(G)
- Refutation
- S(b);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- B(c);::QAB1(G)
- S(b);::QAB1(G)
- Refutation
- K(h);S_FLIGHT
- Try
- P(E);
- Threat
- QAB1(G)
- Vars
- K(h);P-FLIGHT::QAR1(G)
- Refutation
- K(h);P_SPINP(f),S_FLIGHT
- Try
- P(H);
- Threat
- DUALS(3)
- Vars
- S(b);::QAR1(H)
- Refutation
- K(h);P_SPINP(f),S_FLIGHT
- Try
- Actual
- R(D);XP(f)
- Threat
- R1(D)
- Vars
- K(h);S_FLIGHT,XR(D)::QAB(G)
- P(g);SBLOCK,XR(D)::QAB1(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).