MESON Chess Problem Database
Problem Display
PID: 268742 (B4R2/p3B2b/3pp2p/Nn2k1p1/R7/p7/5PP1/7K w - - 0 1)
Wielgos, Oskar
Die Schwalbe, 1975
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Be4
- 2.Rxe4#
- 1...Bf5
- 2.Bf6#
- 1...Bg8
- 2.Re4#
- 1...Sd4
- 2.Sc4#
- 1...d5
- 2.Sc6#
- 1...Be4
- Tries
- 1.Bxg5?
- threat
- 2.Bf4#
- 2.f4#
- 1...d5
- 2.Bf4#
- 1...hxg5!
- threat
- 1.Bf3?
- threat
- 2.Sc6#
- 1...Sd4
- 2.Sc4#
- 1...Be4!
- threat
- 1.Rd4?
- threat
- 2.Sc6#
- 1...Sxd4
- 2.Sc4#
- 1...Be4
- 2.Rxe4#
- 1...Kxd4!
- threat
- 1.Rg4?
- threat
- 2.Sc4#
- 1...Be4
- 2.Rxe4#
- 1...d5
- 2.Sc6#
- 1...Bd3!
- threat
- 1.Rf3?
- threat
- 2.Bf6#
- 1...d5
- 2.Sc6#
- 1...Bf5!
- threat
- 1.Bxg5?
- Keys
- 1.g4!
- threat
- 2.Bf6#
- 1...Be4+
- 2.Rxe4#
- 1...Sd4
- 2.Sc4#
- 1...d5
- 2.Sc6#
- threat
- 1.g4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(i);N_GUARD,P_PINP(C)::R1(D),XB(i)
- B(i);SBLOCK::B(F)
- B(i);N_GUARD::R1(D)
- S(b);SBLOCK::S(E)
- P(e);SBLOCK::S(E)
- Tries
- Try
- B(F);XP(d)
- Threat
- DUALS(2)
- Vars
- P(e);::B(F)
- Refutation
- P(g);XB(F)
- Try
- B(G);
- Threat
- S(E)
- Vars
- S(b);SBLOCK::S(E)
- Refutation
- B(i);
- Try
- R(D);
- Threat
- S(E)
- Vars
- S(b);SBLOCK,XR(D)::S(E)
- B(i);N_GUARD,P_PINP(C)::R1(D),XB(i)
- Refutation
- K(c);S_FLIGHT,XR(D)
- Try
- R(D);
- Threat
- S(E)
- Vars
- B(i);N_GUARD,P_PINP(C)::R1(D),XB(i)
- P(e);SBLOCK::S(E)
- Refutation
- B(i);
- Try
- R(H);
- Threat
- B(F)
- Vars
- P(e);SBLOCK::S(E)
- Refutation
- B(i);
- Try
- Actual
- P(C);
- Threat
- B(F)
- Vars
- B(i);CHECK,N_GUARD::R1(D),XB(i)
- S(b);SBLOCK::S(E)
- P(e);SBLOCK::S(E)
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).