MESON Chess Problem Database
Problem Display
PID: 80769 (R2NNK2/3k4/4pp2/5b1R/5r2/3pr1B1/3P1Q2/5B2 w - - 0 1)
Grabowski, Kazimierz
Good Companions (January), 1919
#2
9 + 7
| 3391 | Het Half Pin Thema | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qa7#
- 1...Re2
- 2.Qa7#
- 1...Ref3
- 2.Qa7#
- 1...Rxg3
- 2.Qa7#
- 1...Ree4
- 2.Qa7#
- 1...Re5
- 2.Qa7#
- 1...Rxf2
- 2.Sxf6#
- 1...Rff3
- 2.Sxf6#
- 1...Ra4
- 2.Sxf6#
- 1...Rb4
- 2.Sxf6#
- 1...Rc4
- 2.Sxf6#
- 1...Rd4
- 2.Sxf6#
- 1...Rfe4
- 2.Sxf6#
- 1...Rg4
- 2.Sxf6#
- 1...Rh4
- 2.Sxf6#
- 1...Bh3
- 2.Rh7#
- 1...Bg4
- 2.Rh7#
- 1...Bh7
- 2.Rxh7#
- 1...Re1
- Tries
- 1.Bg2?
- threat
- 2.Bc6#
- 1...Ref3
- 2.Qa7#
- 1...Ree4
- 2.Qa7#
- 1...Rff3
- 2.Sxf6#
- 1...Rc4
- 2.Sxf6#
- 1...Rfe4
- 2.Sxf6#
- 1...Be4!
- threat
- 1.Bxf4?
- threat
- 2.Sxf6#
- 1...Re5
- 2.Qa7#
- 1...e5!
- threat
- 1.Qxe3?
- threat
- 2.Qa7#
- 1...Ra4
- 2.Sxf6#
- 1...Rb4
- 2.Sxf6#
- 1...Rc4
- 2.Sxf6#
- 1...Rd4
- 2.Sxf6#
- 2.Qxd4#
- 1...Be4!
- threat
- 1.Qxf4?
- threat
- 2.Sxf6#
- 2.Qd6#
- 2.Qc7#
- 2.Qa4#
- 2.Qd4#
- 1...Be4
- 2.Sxf6#
- 2.Qd6#
- 2.Qc7#
- 1...Re4
- 2.Sxf6#
- 2.Qd6#
- 2.Qc7#
- 1...e5
- 2.Qa4#
- 2.Qxf5#
- 1...Re5!
- threat
- 1.Bg2?
- Keys
- 1.Bh3!
- 1...Rxg3
- 2.Qa7#
- 1...Rxf2
- 2.Sxf6#
- 1...Bxh3
- 2.Rh7#
- 1...Be4
- 2.Bxe6#
- 1...Re1
- 2.Qa7#
- 1...Re2
- 2.Qa7#
- 1...Ref3
- 2.Qa7#
- 1...Ree4
- 2.Qa7#
- 1...Re5
- 2.Qa7#
- 1...Rff3
- 2.Sxf6#
- 1...Ra4
- 2.Sxf6#
- 1...Rb4
- 2.Sxf6#
- 1...Rc4
- 2.Sxf6#
- 1...Rd4
- 2.Sxf6#
- 1...Rfe4
- 2.Sxf6#
- 1...Rg4
- 2.Sxf6#
- 1...Rh4
- 2.Sxf6#
- 1...Bg4
- 2.Rh7#
- 1...Bg6
- 2.Rd5#
- 1...Bh7
- 2.Rd5#
- 2.Rxh7#
- 1...e5
- 2.Rh7#
- 1...Rxg3
- 1.Bh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(b);OGATE::QAR(C)
- R(b);OGATE,XB(D)::QAR(C)
- R(c);XQ(C)::S(H),XP(f)
- R(c);::S(H),XP(f)
- B(d);N_GUARD::R(E)
- B(d);N_GUARD::R(E),XB(d)
- Tries
- Try
- B(A);
- Threat
- B(A)
- Vars
- R(b);OGATE::QAR(C)
- R(c);::S(H),XP(f)
- Refutation
- B(d);
- Try
- B(D);XR(c)
- Threat
- S(H),XP(f)
- Vars
- R(b);OGATE::QAR(C)
- Refutation
- P(e);
- Try
- Q(C);XR(b)
- Threat
- QAR(C)
- Vars
- R(c);::S(H),XP(f)
- Refutation
- B(d);
- Try
- Q(C);XR(c)
- Threat
- DUALS(5)
- Refutation
- R(b);
- Try
- Actual
- B(A);
- Vars
- R(b);OGATE,XB(D)::QAR(C)
- R(c);XQ(C)::S(H),XP(f)
- B(d);N_GUARD,XB(A)::R(E)
- B(d);OGATE,P_SPINP(e)::B(A),XP(e)
- R(b);OGATE::QAR(C)
- R(c);::S(H),XP(f)
- B(d);N_GUARD::R(E)
- B(d);OGATE,P_SPINP(e)::R(E)
- P(e);P_SPINB(d)::R(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).