MESON Chess Problem Database
Problem Display
PID: 273406 (1b5Q/p4P2/4r1N1/1PBkNB2/R1R2p1K/3p4/8/5r1b w - - 0 1)
Hannelius, Jan Ingvar
Probleemblad, 1952
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxf4#
- 1...Rb1
- 2.Sxf4#
- 1...Rc1
- 2.Sxf4#
- 1...Rd1
- 2.Sxf4#
- 1...Re1
- 2.Sxf4#
- 1...Rg1
- 2.Sxf4#
- 1...Rf3
- 2.Be4#
- 1...Ra6
- 2.Se7#
- 1...Rb6
- 2.Se7#
- 1...Rc6
- 2.Se7#
- 1...Rd6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 1...Bf3
- 2.Sxf4#
- 1...Be4
- 2.Bxe4#
- 1...Bd6
- 2.Qa8#
- 1...f3
- 2.Sf4#
- 2.Be4#
- 1...Ra1
- Tries
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Re5
- 2.Sxf4#
- 1...Rf6
- 2.Se7#
- 1...Be5
- 2.Be4#
- 1...Re4!
- threat
- 1.Sg4?
- threat
- 2.Qd4#
- 1...Re4
- 2.Sf6#
- 1...Re5
- 2.Sf6#
- 1...Rf6
- 2.Sxf6#
- 2.Se7#
- 1...Be5!
- threat
- 1.Sd7?
- threat
- 2.Rd4#
- 2.Qd4#
- 1...Re4
- 2.Sf6#
- 1...Re5
- 2.Sf6#
- 2.Rd4#
- 1...Rf6
- 2.Se7#
- 2.Sxf6#
- 2.Rd4#
- 1...Be5!
- threat
- 1.Qf6?
- threat
- 2.Bxe6#
- 2.Qxe6#
- 1...Rxe5
- 2.Qc6#
- 1...Ra6
- 2.Se7#
- 1...Rb6
- 2.Se7#
- 1...Rc6
- 2.Se7#
- 2.Qxc6#
- 1...Rd6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qc6#
- 1...Re8
- 2.Qc6#
- 1...Rxf6!
- threat
- 1.Qc8?
- threat
- 2.Bxe6#
- 2.Rd4#
- 2.Qxe6#
- 1...Rxe5
- 2.Rd4#
- 2.Qb7#
- 2.Qc6#
- 1...Bxe5
- 2.Bxe6#
- 2.Qxe6#
- 1...Ra6
- 2.Rd4#
- 1...Rb6
- 2.Rd4#
- 1...Rc6
- 2.Qxc6#
- 1...Rd6
- 2.Rd4#
- 1...Rf6
- 2.Rd4#
- 1...Re7
- 2.Rd4#
- 2.Qc6#
- 1...Re8
- 2.Rd4#
- 2.Qb7#
- 2.Qc6#
- 1...Bc7
- 2.Bxe6#
- 2.Qxe6#
- 1...Rxg6!
- threat
- 1.Qd8+?
- 1...Bd6
- 2.Qa8#
- 1...Rd6!
- 1...Bd6
- 1.f8Q?
- threat
- 2.Rd4#
- 1...Rd6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 1...Bd6
- 2.Qa8#
- 1...Bxe5!
- threat
- 1.Sf3?
- Keys
- 1.Bd6!
- threat
- 2.Rd4#
- 1...Kxd6
- 2.Qd8#
- 1...Rxd6
- 2.Se7#
- 1...Bxd6
- 2.Qa8#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- R(a);N_GUARD::S(H),XP(d)
- R(a);S_CUTB(b)::B(G)
- R(f);N_GUARD::S(H)
- R(f);N_GUARD::S(H),XR(f)
- B(b);S_CUTR(a)::S(H),XP(d)
- B(b);N_GUARD::B(G),XB(b)
- B(h);OGATE::QAB(J)
- Tries
- Try
- S(F);
- Threat
- QAR1(J)
- Vars
- R(f);S_CUTB(h)::S(H),XP(d)
- R(f);N_GUARD::S(H)
- B(h);S_CUTR(f)::B(G)
- Refutation
- R(f);
- Try
- S(F);
- Threat
- QAR1(J)
- Vars
- R(f);N_GUARD::S(F)
- Refutation
- B(h);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD::S(F)
- Refutation
- B(h);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(f);OGATE,XS(F)::QAB1(J)
- R(f);N_GUARD::S(H)
- R(f);OGATE::QAB1(J)
- Refutation
- R(f);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- R(f);::R1(B)
- R(f);N_GUARD::QAB1(J),XR(f)
- Refutation
- R(f);XS(H)
- Try
- Q(J);CHECK
- Vars
- B(h);OGATE,P_SPINB(h)::QAB(J)
- Refutation
- R(f);P_SPINR(f)
- Try
- P(I);
- Threat
- R1(B)
- Vars
- R(f);N_GUARD::S(H)
- R(f);N_GUARD::S(H),XR(f)
- B(h);OGATE::QAB(I)
- Refutation
- B(h);XS(F)
- Try
- Actual
- B(E);
- Threat
- R1(B)
- Vars
- K(e);OGATEB,P-FLIGHT,XB(E)::QAR2(J)
- R(f);N_GUARD,SBLOCK,XB(E)::S(H)
- B(h);OGATE,SBLOCK,XB(E)::QAB(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).