MESON Chess Problem Database
Problem Display
PID: 177511 (2K5/p7/p2k1P2/N1p2P2/1nPp1pN1/3P1P2/1Q2P3/8 w - - 0 1)
Pitkanen, Jorma
Best Problems, 2018
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Qb8#
- 1...Sc2
- 2.Qb8#
- 1...Sxd3
- 2.Qb8#
- 1...Sc6
- 2.Sb7#
- 1...Sa2
- Tries
- 1.Qxd4+?
- 1...Sd5
- 2.Qe5#
- 2.Qxd5#
- 1...cxd4!
- 1...Sd5
- 1.Qb1?
- 1...Sxd3
- 2.Qb8#
- 1...Sa2
- 2.Qb8#
- 1...Sc2
- 2.Qb8#
- 1...Sc6
- 2.Sb7#
- 1...Sd5!
- 1...Sxd3
- 1.Qb3?
- 1...Sxd3
- 2.Qb8#
- 1...Sa2
- 2.Qb8#
- 1...Sc2
- 2.Qb8#
- 1...Sc6
- 2.Sb7#
- 1...Sd5!
- 1...Sxd3
- 1.e3?
- 1...Sxd3
- 2.Qb8#
- 1...dxe3
- 2.Qe5#
- 1...fxe3
- 2.Qh2#
- 1...Sa2
- 2.Qb8#
- 1...Sc2
- 2.Qb8#
- 1...Sc6
- 2.Sb7#
- 1...Sd5!
- 1...Sxd3
- 1.Qxd4+?
- Keys
- 1.e4!
- threat
- 2.e5#
- 1...Sxd3
- 2.Qb8#
- 1...dxe4 ep
- 2.Qe5#
- 1...fxe4 ep
- 2.Qh2#
- 1...Sc6
- 2.Sb7#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- S(a);OGATE::QAB(A)
- S(a);OGATE,XP(C)::QAB(A)
- S(a);SBLOCK::S(G)
- Tries
- Try
- Q(A);CHECK,XP(b)
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Vars
- S(a);OGATE,XP(C)::QAB(A)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::S(G)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- S(a);OGATE,XP(C)::QAB(A)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::S(G)
- Refutation
- S(a);
- Try
- P(B);
- Vars
- S(a);OGATE,XP(C)::QAB(A)
- P(b);OGATE,XP(B)::QAB1(A)
- P(c);OGATEB,XP(B)::QAB(A)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::S(G)
- Refutation
- S(a);
- Try
- Actual
- P(B);
- Threat
- P(B)
- Vars
- S(a);OGATE,XP(C)::QAB(A)
- P(b);EP,OGATE,XP(B)::QAB1(A)
- P(c);EP,OGATEB,XP(B)::QAB(A)
- S(a);SBLOCK::S(G)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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