MESON Chess Problem Database
Problem Display
PID: 8163 (b7/5p2/1N1n1P2/R2p4/4k1P1/1p2p1P1/1B6/1K1Qn3 w - - 0 1)
Lewis, Sally
The Problemist, 1995
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Sd3
- 2.Qh1#
- 1...Sb7
- 2.Qxd5#
- 1...e2
- 2.Qxe2#
- 1...Sd3
- Tries
- 1.Sa4?
- threat
- 2.Sc5#
- 1...e2
- 2.Qxe2#
- 1...Sd3
- 2.Qh1#
- 1...Sb7
- 2.Qxd5#
- 1...d4!
- threat
- 1.Sxd5?
- threat
- 2.Sc3#
- 1...Bxd5
- 2.Qxd5#
- 1...e2
- 2.Qxe2#
- 1...Sd3
- 2.Qh1#
- 1...Sb5!
- threat
- 1.Rxd5?
- threat
- 2.Re5#
- 1...Bxd5
- 2.Qxd5#
- 1...e2
- 2.Qxe2#
- 1...Sd3
- 2.Qh1#
- 1...Sf3
- 2.Qd3#
- 1...Sc4!
- threat
- 1.Rxa8?
- threat
- 2.Qxd5#
- 1...e2
- 2.Qxe2#
- 1...Sd3
- 2.Qh1#
- 1...d4!
- threat
- 1.Sa4?
- Keys
- 1.Sd7!
- threat
- 2.Sc5#
- 1...e2
- 2.Qxe2#
- 1...Sd3
- 2.Qh1#
- 1...Sb7
- 2.Qxd5#
- 1...d4
- 2.Re5#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);OGATE,SBLOCK::QAB(B)
- S(f);S_CUTB(h)::QAB1(B),XP(e)
- P(c);OGATEB::QAR2(B),XP(c)
- Tries
- Try
- S(G);
- Threat
- S(G)
- Vars
- P(c);OGATEB::QAR2(B),XP(c)
- S(a);OGATE,SBLOCK::QAB(B)
- S(f);S_CUTB(h)::QAB1(B),XP(e)
- Refutation
- P(e);
- Try
- S(G);XP(e)
- Threat
- S(G)
- Vars
- B(h);OGATE,XS(G)::QAB1(B),XB(h)
- P(c);OGATEB::QAR2(B),XP(c)
- S(a);OGATE,SBLOCK::QAB(B)
- Refutation
- S(f);
- Try
- R(F);XP(e)
- Threat
- R1(F)
- Vars
- B(h);OGATE,XR(F)::QAB1(B),XB(h)
- P(c);OGATEB::QAR2(B),XP(c)
- S(a);OGATE::QAB(B)
- S(a);N_GUARD,SBLOCK::QAB1(B)
- Refutation
- S(f);
- Try
- R(F);XB(h)
- Threat
- QAB1(B),XP(e)
- Vars
- P(c);OGATEB::QAR2(B),XP(c)
- S(a);OGATE,SBLOCK::QAB(B)
- Refutation
- P(e);
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- P(c);OGATEB::QAR2(B),XP(c)
- S(a);OGATE,SBLOCK::QAB(B)
- S(f);S_CUTB(h)::QAB1(B),XP(e)
- P(e);OGATE::R1(F)
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).