MESON Chess Problem Database
Problem Display
PID: 134405 (1n3Q2/1NprPB1K/P1kb2N1/1pP1P3/rn1R4/8/8/2R5 w - - 0 1)
Hirschenson, Aaron
Navon, Emanuel
1st Comm., Sunningdale TAC Ty., 2010
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Sxa5#
- 1...Bxe5
- 2.Sxe5#
- 1...Sa2
- 2.Bd5#
- 1...Sc2
- 2.Bd5#
- 1...Sd3
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...S4xa6
- 2.Bd5#
- 1...Ra5
- Tries
- 1.Qe8?
- threat
- 2.Sd8#
- 1...Bxe7
- 2.Sxe7#
- 1...Sc2
- 2.Bd5#
- 1...Bxc5!
- threat
- 1.e8Q?
- threat
- 2.Sd8#
- 1...Bxc5
- 2.Qxc5#
- 1...Be7
- 2.Sxe7#
- 1...Sc2!
- threat
- 1.e8B?
- threat
- 2.Sd8#
- 1...Bxc5
- 2.Qxc5#
- 1...Be7
- 2.Sxe7#
- 1...Sc2!
- threat
- 1.Qe8?
- Keys
- 1.Be8!
- threat
- 2.Sd8#
- 1...Bxc5
- 2.Qf6#
- 1...Bxe7
- 2.Sxe7#
- 1...Sc2
- 2.Qf3#
- threat
- 1.Be8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(a);N_GUARD::S(G),XR(a)
- B(e);XP(D)::S(F),XB(e)
- S(b);N_GUARD::B(I)
- S(b);N_GUARD::B(I),XS(b)
- S(b);N_GUARD,XP(E)::B(I)
- Tries
- Try
- Q(K);P_PINR(g)
- Threat
- S(G)
- Vars
- B(e);XP(H)::S(F),XB(e)
- S(b);N_GUARD::B(I)
- Refutation
- B(e);P_SPINB(e),XP(C)
- Try
- P(H);P_PINR(g),P_SPINB(I)
- Threat
- S(G)
- Vars
- B(e);OGATE,P_SPINB(e),XP(C)::QAR1(K),XB(e)
- B(e);N_GUARD,N_PINB(I)::S(F),XB(e)
- Refutation
- S(b);
- Try
- P(H);P_PINR(g),P_SPINB(I)
- Threat
- S(G)
- Vars
- B(e);OGATE,P_SPINB(e),XP(C)::QAR1(K),XB(e)
- B(e);N_GUARD,N_PINB(I)::S(F),XB(e)
- Refutation
- S(b);
- Try
- Actual
- B(I);P_PINR(g),P_SPINP(H)
- Threat
- S(G)
- Vars
- B(e);OGATEB,P_SPINB(e),XP(C)::QAR(K)
- B(e);XP(H)::S(F),XB(e)
- S(b);N_GUARD::QAB(K)
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).