MESON Chess Problem Database
Problem Display
PID: 52125 (3rr3/2PBp1P1/4pR2/2K2N1N/4k2P/1Q4P1/6nb/Bb4n1 w - - 0 1)
Hermanson, Halvar
1st Prize, Main-Post, 1966-1967
#2
11 + 9
| 3389 | Belgian Solving Championship | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Ra8
- 2.Bc6#
- 1...Rb8
- 2.Bc6#
- 1...Rc8
- 2.Bc6#
- 1...Bd3
- 2.Qb7#
- 1...Bxg3
- 2.Sfxg3#
- 1...Sf3
- 2.Qxb1#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sxh4
- 2.Qe3#
- 1...exf5
- 2.Bxf5#
- 2.Re6#
- 1...e5
- 2.Qd5#
- 1...exf6
- 2.Sd6#
- 1...Ra8
- Tries
- 1.Sxe7?
- threat
- 2.Rxe6#
- 1...Bxg3
- 2.Sxg3#
- 1...Bd3
- 2.Qxe6#
- 1...Sf3
- 2.Qxf3#
- 1...Se3
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...e5
- 2.Bf5#
- 1...Rxe7!
- threat
- 1.Sf4?
- threat
- 2.Qb7#
- 1...Bxg3
- 2.Sxg3#
- 1...Sxf4
- 2.Qe3#
- 1...exf5
- 2.Bxf5#
- 2.Re6#
- 1...exf6
- 2.Sd6#
- 1...Se3
- 2.Qxe3#
- 1...Rb8
- 2.Bc6#
- 1...Ba2
- 2.Qd3#
- 1...Rxd7!
- threat
- 1.Qxe6+?
- 1...Kf3
- 2.Sd4#
- 1...Kd3!
- 1...Kf3
- 1.cxd8Q?
- threat
- 2.Bc6#
- 1...exf6
- 2.Sd6#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Rxd8!
- threat
- 1.cxd8S?
- threat
- 2.Bc6#
- 1...exf6
- 2.Sd6#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Rxd8!
- threat
- 1.cxd8B?
- threat
- 2.Bc6#
- 1...exf6
- 2.Sd6#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Rxd8!
- threat
- 1.cxd8R?
- threat
- 2.Bc6#
- 1...exf6
- 2.Sd6#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Rxd8!
- threat
- 1.g8Q?
- threat
- 2.Qgxe6#
- 1...Bxg3
- 2.Sfxg3#
- 1...exf5
- 2.Bxf5#
- 2.Re6#
- 2.Qgc4#
- 2.Qgd5#
- 2.Qge6#
- 1...exf6
- 2.Sd6#
- 1...Bd3
- 2.Qb7#
- 1...Se3
- 2.Qxe3#
- 1...Sf3
- 2.Qxb1#
- 1...Sf4
- 2.Qe3#
- 1...e5
- 2.Qbd5#
- 2.Qgc4#
- 2.Qgd5#
- 1...Rxg8!
- threat
- 1.Sxe7?
- Keys
- 1.Sh6!
- threat
- 2.Rxe6#
- 1...Bxg3
- 2.Sxg3#
- 1...exf6
- 2.Sxf6#
- 1...Bd3
- 2.Qxe6#
- 1...Sf3
- 2.Qxf3#
- 1...Se3
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...e5
- 2.Bf5#
- threat
- 1.Sh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(h);N_GUARD::B(J)
- R(h);N_GUARD,P_PINP(I)::B(J)
- B(a);SBLOCK::QAB(B)
- B(d);XP(C)::S(F),XB(d)
- S(b);SBLOCK::QAB(B),XB(a)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(c);N_GUARD,XP(D)::QAR1(B)
- P(f);N_GUARD::QAB1(B)
- P(g);N_GUARD,XR(H)::S(F)
- Tries
- Try
- S(F);XP(g)
- Threat
- R(H),XP(f)
- Vars
- B(d);XP(C)::S(G),XB(d)
- B(a);SBLOCK::QAR2(B),XP(f)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(c);N_GUARD::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
- P(f);OGATE::B(J)
- Refutation
- R(i);XS(F)
- Try
- S(G);
- Threat
- QAB(B)
- Vars
- B(d);XP(C)::S(F),XB(d)
- S(c);N_GUARD,XS(G)::QAR1(B)
- P(g);N_GUARD,XR(H)::S(F)
- S(c);N_GUARD::QAR1(B),XS(c)
- R(h);N_GUARD::B(J)
- B(a);N_GUARD::QAB1(B)
- Refutation
- R(h);XB(J)
- Try
- Q(B);CHECK,XP(f)
- Vars
- K(e);S_FLIGHT::R(H)+S(F),DCHECK
- Refutation
- K(e);S_FLIGHT
- Try
- P(I);XR(h)
- Threat
- B(J)
- Vars
- P(g);N_GUARD,XR(H)::S(F)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(c);N_GUARD::QAR1(B)
- Refutation
- R(i);XQ(I)
- Try
- P(I);XR(h)
- Threat
- B(J)
- Vars
- P(g);N_GUARD,XR(H)::S(F)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(c);N_GUARD::QAR1(B)
- Refutation
- R(i);XS(I)
- Try
- P(I);XR(h)
- Threat
- B(J)
- Vars
- P(g);N_GUARD,XR(H)::S(F)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(c);N_GUARD::QAR1(B)
- Refutation
- R(i);XB(I)
- Try
- P(I);XR(h)
- Threat
- B(J)
- Vars
- P(g);N_GUARD,XR(H)::S(F)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(c);N_GUARD::QAR1(B)
- Refutation
- R(i);XR(I)
- Try
- P(K);
- Threat
- QAR2(K),XP(f)
- Vars
- B(d);XP(C)::S(F),XB(d)
- P(g);N_GUARD,XR(H)::S(F)
- B(a);SBLOCK::QAB(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(b);SBLOCK::QAB(B),XB(a)
- S(c);N_GUARD::QAR1(B)
- Refutation
- R(i);XQ(K)
- Try
- Actual
- S(F);
- Threat
- R(H),XP(f)
- Vars
- B(d);XP(C)::S(G),XB(d)
- P(g);XR(H)::S(G),XP(g)
- B(a);SBLOCK::QAR2(B),XP(f)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(c);N_GUARD::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
- P(f);OGATE::B(J)
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).