MESON Chess Problem Database
Problem Display
PID: 239175 (K1Q5/1P2P3/p3rbB1/5R2/3pN2q/3kp1Nn/8/4B3 w - - 0 1)
Hermanson, Halvar
Sachove umeni (Ceskoslovensky sach), 1963
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...e2
- 2.Rf3#
- 1...e2
- Tries
- 1.Sd2?
- threat
- 2.Qc4#
- 1...exd2
- 2.Rf3#
- 1...e2
- 2.Rf3#
- 1...Qh8
- 2.Re5#
- 1...Rc6!
- threat
- 1.Sf2+?
- 1...exf2
- 2.Rf3#
- 1...Sxf2!
- 1...exf2
- 1.Rf4?
- threat
- 2.Sf2#
- 1...Rxe4
- 2.Bxe4#
- 1...Rc6
- 2.Sd6#
- 1...e2
- 2.Rf3#
- 1...Sf2
- 2.Sxf2#
- 1...Qxg3!
- threat
- 1.Re5?
- threat
- 2.Sf2#
- 1...Qxg3
- 2.Sxg3#
- 1...Qxe4
- 2.Bxe4#
- 1...Sf2
- 2.Sxf2#
- 1...Rc6!
- threat
- 1.Sd2?
- Keys
- 1.Sd6!
- threat
- 2.Qc4#
- 1...Rxd6
- 2.Rf4#
- 1...e2
- 2.Rf3#
- 1...Qh8
- 2.Re5#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(b);OGATEB::R(D)
- Tries
- Try
- S(C);
- Threat
- QAB1(I)
- Vars
- P(b);XS(C)::B(E)+R(D),DCHECK
- P(b);::B(E)+R(D),DCHECK
- Q(e);N_GUARD,P_PINQ(I)::B(E)+R(D)
- Refutation
- R(g);
- Try
- S(C);CHECK
- Vars
- P(b);XS(C)::B(E)+R(D),DCHECK
- Refutation
- S(c);XS(C)
- Try
- R(D);
- Threat
- B(E)+S(C),DCHECK
- Vars
- R(g);OGATE,P_SPINR(g),XS(C)::B(E),XR(g)
- R(g);N_GUARD::B(E)+S(C)
- P(b);OGATEB::R(D)
- S(c);::B(E)+S(C),DCHECK,XS(c)
- Refutation
- Q(e);XS(B)
- Try
- R(D);
- Threat
- B(E)+S(C),DCHECK
- Vars
- Q(e);XS(B)::B(E)+S(C),XQ(e)
- Q(e);OGATE,P_PINP(F),P_SPINQ(e),XS(C)::B(E),XQ(e)
- S(c);::B(E)+S(C),DCHECK,XS(c)
- Refutation
- R(g);
- Try
- Actual
- S(C);
- Threat
- QAB1(I)
- Vars
- R(g);N_GUARD,XS(C)::B(E)+R(D)
- P(b);::B(E)+R(D),DCHECK
- Q(e);N_GUARD,P_PINQ(I)::B(E)+R(D)
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).