MESON Chess Problem Database
Problem Display
PID: 84766 (6b1/Bp1QN3/4n1r1/1r5R/1pPpk1n1/3N4/3K2P1/8 w - - 0 1)
Hassberg, Eric Manfred
The Chess Problem, 1944
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Qxd5#
- 1...Rb6
- 2.Qd5#
- 1...Sf4
- 2.Qxd4#
- 1...Sc5
- 2.Qf5#
- 1...Sg5
- 2.Qxg4#
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Sg7
- 2.Qxd4#
- 1...Sd8
- 2.Qxd4#
- 1...Sf8
- 2.Qxd4#
- 1...Rd5
- Tries
- 1.Sf5?
- threat
- 2.Sg3#
- 2.Sd6#
- 1...Rd5
- 2.Sg3#
- 2.Qxd5#
- 1...Rb6
- 2.Sg3#
- 2.Qd5#
- 1...Sf2
- 2.Sd6#
- 1...Sh2
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 1...Se5
- 2.Sd6#
- 1...Sf6
- 2.Sd6#
- 1...Sh6
- 2.Sd6#
- 1...Sf4
- 2.Sg3#
- 2.Qxd4#
- 1...Sc5
- 2.Sg3#
- 2.Qxd4#
- 1...Sg5
- 2.Sg3#
- 1...Sc7
- 2.Sg3#
- 2.Qxd4#
- 1...Sg7
- 2.Sg3#
- 2.Qxd4#
- 1...Sd8
- 2.Sg3#
- 2.Qxd4#
- 1...Sf8
- 2.Sg3#
- 2.Qxd4#
- 1...Rxf5!
- threat
- 1.Rxb5?
- threat
- 2.Qd5#
- 2.Qxb7#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 2.Qd5#
- 1...Sf6
- 2.Re5#
- 1...Sf4
- 2.Qf5#
- 2.Qxd4#
- 1...Sc5
- 2.Qf5#
- 1...Sg5
- 2.Qxg4#
- 2.Qf5#
- 2.Qxd4#
- 1...Sc7
- 2.Qf5#
- 2.Qxd4#
- 1...Sg7
- 2.Qxd4#
- 1...Sd8
- 2.Qf5#
- 2.Qxd4#
- 1...Sf8
- 2.Qf5#
- 2.Qxd4#
- 1...b6
- 2.Qc6#
- 2.Qd5#
- 2.Qb7#
- 1...Rg5!
- threat
- 1.Qc6+?
- 1...Rd5
- 2.Qxd5#
- 1...bxc6!
- 1...Rd5
- 1.Qxb7+?
- 1...Rd5
- 2.Qxd5#
- 1...Rxb7!
- 1...Rd5
- 1.cxb5?
- threat
- 2.Qd5#
- 2.Qxb7#
- 1...Se3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 2.Qd5#
- 1...Sf6
- 2.Re5#
- 1...Sf4
- 2.Sc5#
- 2.Qf5#
- 2.Qxd4#
- 1...Sc5
- 2.Qf5#
- 1...Sg5
- 2.Qxg4#
- 2.Qf5#
- 2.Qxd4#
- 1...Sc7
- 2.Qf5#
- 2.Qxd4#
- 1...Sg7
- 2.Qxd4#
- 1...Sd8
- 2.Qf5#
- 2.Qxd4#
- 1...Sf8
- 2.Qf5#
- 2.Qxd4#
- 1...b6
- 2.Qc6#
- 2.Qd5#
- 2.Qb7#
- 1...Rg5!
- threat
- 1.Sf5?
- Keys
- 1.Sc8!
- threat
- 2.Sd6#
- 1...Rd5
- 2.Qxd5#
- 1...Rb6
- 2.Qd5#
- 1...Sf4
- 2.Qxd4#
- 1...Sc5
- 2.Qf5#
- 1...Sg5
- 2.Qxg4#
- 1...Sc7
- 2.Qxd4#
- 1...Sg7
- 2.Qxd4#
- 1...Sd8
- 2.Qxd4#
- 1...Sf8
- 2.Qxd4#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::QAB1(G),XR(e)
- R(e);N_GUARD::QAB1(G)
- S(f);N_GUARD::QAR1(G),XP(b)
- S(f);OGATE::QAB1(G)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- S(d);::S(H)
- S(f);::S(H)
- Refutation
- R(e);XS(H)
- Try
- R(E);XR(e)
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD::R1(E)
- S(f);OGATE::QAB1(G)
- S(f);N_GUARD::QAR1(G),XP(b)
- Refutation
- R(g);
- Try
- Q(G);CHECK
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB1(G),XR(e)
- Refutation
- P(h);XQ(G)
- Try
- Q(G);CHECK,XP(h)
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB1(G),XR(e)
- Refutation
- R(e);XQ(G)
- Try
- P(D);XR(e)
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD::R1(E)
- S(f);OGATE::QAB1(G)
- S(f);N_GUARD::QAR1(G),XP(b)
- Refutation
- R(g);
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- R(e);N_GUARD::QAB1(G),XR(e)
- R(e);N_GUARD::QAB1(G)
- S(f);N_GUARD::QAR1(G),XP(b)
- S(f);OGATE::QAB1(G)
- S(f);OGATE::QAR2(G),XS(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).