MESON Chess Problem Database
Problem Display
PID: 274343 (2r2b2/3N4/bq4p1/R4pB1/1R1Nk3/3nP3/2n5/1BQ3K1 w - - 0 1)
Hesselgren, Ake
Prize, Schackvarlden, 1933
#2
9 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Qa7
- 2.Sf6#
- 1...Qc7
- 2.Sf6#
- 1...Qxb4
- 2.Sf6#
- 1...Qf6
- 2.Sxf6#
- 1...Qb7
- 2.Sf6#
- 1...Qb8
- 2.Sf6#
- 1...Bd6
- 2.Sf6#
- 1...Sa1
- 2.Re5#
- 1...Sce1
- 2.Re5#
- 1...Sa3
- 2.Re5#
- 1...Sxe3
- 2.Re5#
- 2.Qxe3#
- 1...Scxb4
- 2.Re5#
- 1...Qa7
- Tries
- 1.Qf1?
- threat
- 2.Qg2#
- 2.Qf3#
- 1...Qxd4
- 2.Sf6#
- 2.Qg2#
- 1...Sxe3
- 2.Re5#
- 2.Qf3#
- 2.Qf4#
- 1...Sxd4
- 2.Re5#
- 2.Qg2#
- 2.Qf4#
- 1...Sdxb4
- 2.Re5#
- 1...Sf4
- 2.Re5#
- 1...f4
- 2.Qf3#
- 1...Sce1
- 2.Re5#
- 2.Qf4#
- 1...Sc1
- 2.Re5#
- 1...Sde1
- 2.Re5#
- 1...Sb2
- 2.Re5#
- 1...Sf2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sc5!
- threat
- 1.Qxc2?
- threat
- 2.Re5#
- 2.Qg2#
- 1...Qxd4
- 2.Qg2#
- 1...Qxa5
- 2.Qg2#
- 1...Qc5
- 2.Qg2#
- 1...Qb5
- 2.Qg2#
- 1...Rc5
- 2.Qg2#
- 1...Bb5
- 2.Qg2#
- 1...Bc5
- 2.Qg2#
- 1...f4
- 2.Re5#
- 1...Qc7
- 2.Sf6#
- 2.Qg2#
- 1...Qd6
- 2.Qg2#
- 1...Qe6
- 2.Qg2#
- 1...Qf6
- 2.Sxf6#
- 2.Qg2#
- 1...Qb8
- 2.Sf6#
- 2.Qg2#
- 1...Re8
- 2.Qg2#
- 1...Bd6
- 2.Sf6#
- 2.Qg2#
- 1...Bg7
- 2.Qg2#
- 1...Rxc2!
- threat
- 1.Qf1?
- Keys
- 1.Qd1!
- threat
- 2.Qf3#
- 1...Qxd4
- 2.Sf6#
- 1...Sxd4
- 2.Re5#
- 1...Sdxb4
- 2.Re5#
- 1...Sf4
- 2.Re5#
- 1...Sc5
- 2.Sb5#
- 1...Sce1
- 2.Re5#
- 1...Sc1
- 2.Re5#
- 1...Sde1
- 2.Re5#
- 1...Sb2
- 2.Re5#
- 1...Sf2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 10
- Sets
- Q(f);N_GUARD::S(I)
- Q(f);N_GUARD,XR(E)::S(I)
- Q(f);N_GUARD::S(I),XQ(f)
- B(i);S_CUTQ(f)::S(I)
- S(a);P_SPINS(b)::R1(G)
- S(a);P_SPINS(b),XR(E)::R1(G)
- Tries
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,P_SPINS(a),XR(E)::R1(G)
- S(b);N_GUARD,P_SPINS(a)::R1(G)
- P(d);::QAB1(B)
- S(b);N_GUARD,P_SPINS(a)::R1(G),XS(b)
- Refutation
- S(b);P_SPINS(a)
- Try
- Q(B);P_PINS(b),XS(a)
- Threat
- DUALS(2)
- Vars
- Q(f);P_PINP(D),P_SPINQ(f),XS(F)::QAB(B)
- Q(f);XR(G)::QAB(B)
- Q(f);::QAB(B)
- R(h);::QAB(B)
- B(e);::QAB(B)
- B(i);::QAB(B)
- P(d);::R1(G)
- Refutation
- R(h);N_SPINS(b),XQ(B)
- Try
- Actual
- Q(B);
- Threat
- QAB1(B)
- Vars
- Q(f);N_GUARD,P_PINP(D),P_SPINQ(f),XS(F)::S(I)
- S(a);P_SPINS(b),XS(F)::R1(G)
- S(b);N_GUARD,P_SPINS(a),XR(E)::R1(G)
- S(b);N_GUARD,P_SPINS(a)::R1(G)
- S(b);N_GUARD,P_SPINS(a),S_CUTB(i),S_CUTQ(f),S_CUTR(h)::R(E)+S(F)
- S(a);P_SPINS(b)::R1(G)
- S(b);N_GUARD,P_SPINS(a)::R1(G),XS(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).