MESON Chess Problem Database
Problem Display
PID: 180477 (2Q5/8/1P2p3/1p1pp3/PpPkP2p/1P1Bp2R/1N6/BK1N4 w - - 0 1)
Lider, Valentin Viktorovich
Probleemblad, 1989
#2
12 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Tries
- 1.Sf2?
- threat
- 2.Sbd1#
- 1...bxc4
- 2.Sxc4#
- 1...dxc4
- 2.Sxc4#
- 1...Kc3!
- threat
- 1.Bc2?
- 1...bxa4
- 2.Sxa4#
- 1...bxc4
- 2.Sxc4#
- 1...dxc4
- 2.Sxc4#
- 1...dxe4
- 2.Sd3#
- 1...e2!
- 1...bxa4
- 1.Rxe3?
- 1...bxa4
- 2.Sxa4#
- 1...bxc4
- 2.Sxc4#
- 1...dxc4
- 2.Sxc4#
- 1...dxe4
- 2.Rxe4#
- 1...h3!
- 1...bxa4
- 1.Qxe6?
- threat
- 2.Qxd5#
- 1...dxc4
- 2.Qd5#
- 2.Qd6#
- 1...dxe4
- 2.Qd5#
- 2.Qd6#
- 1...Kc5!
- threat
- 1.axb5?
- 1...dxc4
- 2.Qxc4#
- 1...e2
- 2.Sa4#
- 1...dxe4!
- 1...dxc4
- 1.cxd5?
- 1...bxa4
- 2.Qc4#
- 1...e2
- 2.Sc4#
- 1...exd5!
- 1...bxa4
- 1.Sf2?
- Keys
- 1.cxb5!
- 1...dxe4
- 2.Qc4#
- 1...e2
- 2.Sc4#
- 1...dxe4
- 1.cxb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(C);
- Threat
- B(A)+S(D)
- Vars
- P(e);XP(I)::B(A)+S(D),XP(e)
- P(f);XP(I)::B(A)+S(D),XP(f)
- Refutation
- K(c);S_FLIGHT
- Try
- B(F);
- Vars
- P(e);XP(H)::B(A)+S(D),XP(e)
- P(e);XP(I)::B(A)+S(D),XP(e)
- P(f);XP(I)::B(A)+S(D),XP(f)
- P(f);SBLOCK,XP(J)::B(A)+S(D)
- Refutation
- P(a);
- Try
- R(G);XP(a)
- Vars
- P(e);XP(H)::B(A)+S(D),XP(e)
- P(e);XP(I)::B(A)+S(D),XP(e)
- P(f);XP(I)::B(A)+S(D),XP(f)
- P(f);OGATE,XP(J)::R1(G),XP(f)
- Refutation
- P(d);
- Try
- Q(L);XP(h)
- Threat
- QAR1(L),XP(f)
- Refutation
- K(c);S_FLIGHT
- Try
- P(H);XP(e)
- Vars
- P(f);OGATE,XP(I)::QAR1(L),XP(f)
- P(a);::B(A)+S(D)
- Refutation
- P(f);XP(J)
- Try
- P(I);XP(f)
- Vars
- P(e);N_GUARD,XP(H)::QAR1(L)
- P(a);::B(A)+S(D)
- Refutation
- P(h);XP(I)
- Try
- Actual
- P(I);XP(e)
- Vars
- P(f);N_GUARD,XP(J)::QAR1(L)
- P(a);::B(A)+S(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).