MESON Chess Problem Database
Problem Display
PID: 271593 (b3K3/5QpN/8/RBn1p1p1/r2Pkb2/1n1ppp1R/1B6/3N2r1 w - - 0 1)
Beszczynski, Jan
The Problemist, 1956
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Sc3#
- 1...Bh2
- 2.Qxf3#
- 1...Bg3
- 2.Sxg5#
- 1...Bd5
- 2.Qg6#
- 1...Bc6+
- 2.Bxc6#
- 1...Sxd4
- 2.Sc3#
- 1...Sb7
- 2.Bc6#
- 1...Rxd4
- Tries
- 1.Sxg5+?
- 1...Bxg5
- 2.Qxf3#
- 1...Rxg5!
- 1...Bxg5
- 1.Bxd3+?
- 1...Sxd3
- 2.Qg6#
- 1...Kxd3!
- 1...Sxd3
- 1.Sxg5+?
- Keys
- 1.Bd7!
- threat
- 2.Bf5#
- 1...Sxd4
- 2.Sc3#
- 1...Sxd7
- 2.Qg6#
- 1...exd4
- 2.Qf5#
- 1...Bh2
- 2.Qxf3#
- 1...Bg3
- 2.Sxg5#
- 1...Bc6
- 2.Bxc6#
- 1...Se6
- 2.Qg6#
- 1...g6
- 2.Sf6#
- threat
- 1.Bd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- R(f);SBLOCK,XP(D)::S(A)
- B(h);OGATE::QAB1(G),XP(e)
- B(h);N_GUARD,S_CUTR(a)::S(H),XP(k)
- B(m);SBLOCK::QAB(G)
- B(m);CHECK,N_GUARD::B(F),XB(m)
- S(b);SBLOCK,XP(D)::S(A)
- S(i);S_CUTB(m)::B(F)
- Tries
- Try
- S(H);CHECK,XP(k)
- Vars
- B(h);OGATE,XS(H)::QAB1(G),XP(e)
- Refutation
- R(a);XS(H)
- Try
- B(F);CHECK,XP(c)
- Vars
- S(i);SBLOCK,XB(F)::QAB(G)
- Refutation
- K(g);S_FLIGHT,XB(F)
- Try
- Actual
- B(F);
- Threat
- B(F)
- Vars
- S(b);SBLOCK,XP(D)::S(A)
- S(i);XB(F)::QAB(G)
- P(j);XP(D)::QAB1(G)
- B(h);OGATE::QAB1(G),XP(e)
- B(h);N_GUARD,S_CUTR(a)::S(H),XP(k)
- B(m);N_GUARD,P_PINB(F)::B(F),XB(m)
- S(i);::QAB(G)
- P(l);N_GUARD::S(H)
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).