MESON Chess Problem Database
Problem Display
PID: 180263 (8/8/8/B7/1rP2P2/3pKppN/2P1P3/3QNk2 w - - 0 1)
Lider, Valentin Viktorovich
Die Schwalbe, 1981
#2
9 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...g2
- 2.Sxd3#
- 2.Sxf3#
- 1...g2
- Tries
- 1.Kxf3?
- threat
- 2.Sg2#
- 2.Sxd3#
- 1...dxc2
- 2.Sxc2#
- 1...dxe2
- 2.Qxe2#
- 1...d2
- 2.Sg2#
- 2.Sd3#
- 1...g2
- 2.Sxg2#
- 2.Sxd3#
- 1...Rb1!
- threat
- 1.exf3?
- 1...Rxc4
- 2.Qxd3#
- 1...dxc2
- 2.Qe2#
- 1...Rb1
- 2.Qxd3#
- 1...Rb2
- 2.Qxd3#
- 1...Ra4
- 2.Qxd3#
- 1...Rb5
- 2.Qxd3#
- 1...Rb6
- 2.Qxd3#
- 1...Rb7
- 2.Qxd3#
- 1...Rb8
- 2.Qxd3#
- 1...d2
- 2.Qe2#
- 1...g2
- 2.Sxd3#
- 1...Rb3!
- 1...Rxc4
- 1.Kxf3?
- Keys
- 1.exd3!
- 1...Rxc4
- 2.Qxf3#
- 1...Rb1
- 2.Qxf3#
- 1...Rb2
- 2.Qxf3#
- 1...Rb3
- 2.Qxf3#
- 1...Ra4
- 2.Qxf3#
- 1...Rb5
- 2.Qxf3#
- 1...Rb6
- 2.Qxf3#
- 1...Rb7
- 2.Qxf3#
- 1...Rb8
- 2.Qxf3#
- 1...f2
- 2.Qe2#
- 1...g2
- 2.Sxf3#
- 1...Rxc4
- 1.exd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- Tries
- Try
- K(E);P-FLIGHT,XP(c)
- Threat
- DUALS(2)
- Vars
- P(b);XP(C)::QAR(A)+S(B),XP(b)
- P(b);OGATE,XP(D)::QAB1(A),XP(b)
- Refutation
- R(e);
- Try
- P(D);XP(c)
- Vars
- R(e);XP(G)::QAB(A),XP(b)
- P(b);N_GUARD,XP(C)::QAB1(A)
- R(e);::QAB(A),XP(b)
- P(b);N_GUARD::QAB1(A)
- P(d);SBLOCK::QAR(A)+S(B),XP(b)
- Refutation
- R(e);
- Try
- Actual
- P(D);XP(b)
- Vars
- R(e);XP(G)::QAR2(A),XP(c)
- R(e);::QAR2(A),XP(c)
- R(e);P_PINP(D)::QAR2(A),XP(c)
- P(c);N_GUARD::QAB1(A)
- P(d);SBLOCK::QAR(A)+S(B),XP(c)
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).