MESON Chess Problem Database
Problem Display
PID: 239169 (2r5/1q6/4r3/6Q1/6Rp/5P1K/5P1p/1R1B3k w - - 0 1)
Hermanson, Halvar
Sachove umeni (Ceskoslovensky sach), 1959
#2
7 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3+
- 2.Bxf3#
- 1...Qxf3+
- Tries
- 1.Bc2+?
- 1...Re1
- 2.Rxe1#
- 1...Qxb1!
- 1...Re1
- 1.Be2+?
- 1...Rc1
- 2.Rxc1#
- 2.Qxc1#
- 1...Qxb1!
- 1...Rc1
- 1.Bb3+?
- 1...Re1
- 2.Rxe1#
- 1...Rc1!
- 1...Re1
- 1.Rgb4?
- threat
- 2.Qg2#
- 1...Qxf3+
- 2.Bxf3#
- 1...Rg6
- 2.Bc2#
- 1...Rg8
- 2.Be2#
- 1...Qg7!
- threat
- 1.Rc4?
- threat
- 2.Qg2#
- 1...Qxf3+
- 2.Bxf3#
- 1...Qg7
- 2.Be2#
- 1...Rg6
- 2.Bb3#
- 1...Rg8!
- threat
- 1.Bc2+?
- Keys
- 1.Re4!
- threat
- 2.Qg2#
- 1...Qg7
- 2.Bc2#
- 1...Rg6
- 2.Re1#
- 1...Rg8
- 2.Bb3#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(e);CHECK,OGATE,XP(D)::R(A)+B(B),DCHECK,XQ(e)
- Tries
- Try
- B(B);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::R(A),XR(d)
- Refutation
- Q(e);XR(A)
- Try
- B(B);CHECK
- Refutation
- Q(e);XR(A)
- Try
- B(B);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::R(A),XR(d)
- Refutation
- R(f);P_SPINR(f)
- Try
- R(F);
- Threat
- QAB1(G)
- Vars
- Q(e);CHECK,OGATE,XP(D)::R(A)+B(B),DCHECK,XQ(e)
- R(d);N_GUARD::R(A)+B(B)
- R(f);N_GUARD::R(A)+B(B)
- Refutation
- Q(e);
- Try
- R(F);
- Threat
- QAB1(G)
- Vars
- Q(e);CHECK,OGATE,XP(D)::R(A)+B(B),DCHECK,XQ(e)
- Q(e);N_GUARD::R(A)+B(B)
- R(d);N_GUARD::R(A)+B(B)
- Refutation
- R(f);
- Try
- Actual
- R(F);
- Threat
- QAB1(G)
- Vars
- Q(e);N_GUARD::R(A)+B(B)
- R(d);N_GUARD::R(F)
- R(f);N_GUARD::R(A)+B(B)
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).