MESON Chess Problem Database
Problem Display
PID: 54229 (1B4B1/6RQ/1p1rN3/2pk1P2/4pP2/1P6/N7/2RK4 w - - 0 1)
Elson, Jacob
5. American Chess Congress, 1880
#2
11 + 5
| 15 | British Chess Magazine | 1895 |
| 5669 | Tidsskrift for Skak | 1895 |
| 58 | Tijdschrift vd NSB | 1895 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Sc3#
- 1...e3
- 2.Qh1#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Rc6
- Tries
- 1.Sd4+?
- 1...Re6
- 2.Rd7#
- 1...Kxd4!
- 1...Re6
- 1.Sd8+?
- 1...Re6
- 2.Rd7#
- 1...Kd4!
- 1...Re6
- 1.Rg1?
- 1...Rxe6
- 2.Qd7#
- 1...e3
- 2.Qh1#
- 1...Rc6
- 2.Sc3#
- 1...Rd7
- 2.Qxd7#
- 1...Rd8
- 2.Qb7#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Kc6+!
- 1...Rxe6
- 1.Rg3?
- 1...Rxe6
- 2.Qd7#
- 1...e3
- 2.Qh1#
- 1...Rc6
- 2.Sc3#
- 1...Rd7
- 2.Qxd7#
- 1...Rd8
- 2.Qb7#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Kc6+!
- 1...Rxe6
- 1.Rg4?
- 1...Rxe6
- 2.Qd7#
- 1...e3
- 2.Qh1#
- 1...Rc6
- 2.Sc3#
- 1...Rd7
- 2.Qxd7#
- 1...Rd8
- 2.Qb7#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Kc6+!
- 1...Rxe6
- 1.Rg5?
- 1...Rxe6
- 2.Qd7#
- 1...e3
- 2.Qh1#
- 1...Rc6
- 2.Sc3#
- 2.f6#
- 1...Rd7
- 2.Qxd7#
- 1...Rd8
- 2.Qb7#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Kc6+!
- 1...Rxe6
- 1.Ra7?
- 1...Rxe6
- 2.Qd7#
- 1...e3
- 2.Qh1#
- 1...Rc6
- 2.Sc3#
- 1...Rd7
- 2.Qxd7#
- 1...Rd8
- 2.Qb7#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Kc6+!
- 1...Rxe6
- 1.Rd7?
- threat
- 2.Rxd6#
- 1...Rxd7
- 2.Qxd7#
- 1...e3
- 2.Qh1#
- 1...Kc6+!
- threat
- 1.Sd4+?
- Keys
- 1.Rg6!
- 1...Kc6+
- 2.Sd4#
- 1...Rxe6
- 2.Qd7#
- 1...e3
- 2.Qh1#
- 1...Rc6
- 2.Sc3#
- 1...Rd7
- 2.Qxd7#
- 1...Rd8
- 2.Qb7#
- 1...c4
- 2.Sb4#
- 1...b5
- 2.Rxc5#
- 1...Kc6+
- 1.Rg6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(e);SBLOCK::S(C)
- P(a);OGATEB::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(b)
- Tries
- Try
- S(G);CHECK
- Vars
- R(e);P_SPINR(e)::R(H)
- Refutation
- K(c);P-FLIGHT,XS(G)
- Try
- S(G);CHECK
- Vars
- R(e);P_SPINR(e)::R(H)
- Refutation
- K(c);P-FLIGHT
- Try
- R(H);
- Vars
- R(e);OGATEB,P_SPINR(e),XS(G)::QAR2(I)
- P(a);OGATEB::QAB(I)
- R(e);SBLOCK::S(C)
- R(e);OGATEB::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(b)
- Refutation
- K(c);CHECK,P_SPINP(b),S_FLIGHT
- Try
- R(H);
- Vars
- R(e);OGATEB,P_SPINR(e),XS(G)::QAR2(I)
- P(a);OGATEB::QAB(I)
- R(e);SBLOCK::S(C)
- R(e);OGATEB::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(b)
- Refutation
- K(c);CHECK,P_SPINP(b),S_FLIGHT
- Try
- R(H);
- Vars
- R(e);OGATEB,P_SPINR(e),XS(G)::QAR2(I)
- P(a);OGATEB::QAB(I)
- R(e);SBLOCK::S(C)
- R(e);OGATEB::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(b)
- Refutation
- K(c);CHECK,P_SPINP(b),S_FLIGHT
- Try
- R(H);
- Vars
- R(e);OGATEB,P_SPINR(e),XS(G)::QAR2(I)
- P(a);OGATEB::QAB(I)
- R(e);OGATEB::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(b)
- Refutation
- K(c);CHECK,P_SPINP(b),S_FLIGHT
- Try
- R(H);
- Vars
- R(e);OGATEB,P_SPINR(e),XS(G)::QAR2(I)
- P(a);OGATEB::QAB(I)
- R(e);SBLOCK::S(C)
- R(e);OGATEB::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(b)
- Refutation
- K(c);CHECK,P_SPINP(b),S_FLIGHT
- Try
- R(H);P_PINR(e)
- Threat
- R1(H),XR(e)
- Vars
- R(e);N_SPINR(e),OGATE,XR(H)::QAR2(I),XR(e)
- P(a);OGATEB::QAB(I)
- Refutation
- K(c);CHECK,N_SPINR(e),P_SPINP(b),S_FLIGHT
- Try
- Actual
- R(H);
- Vars
- K(c);CHECK,P_SPINP(b),S_FLIGHT::S(G)
- R(e);OGATEB,P_SPINR(e),XS(G)::QAR2(I)
- P(a);OGATEB::QAB(I)
- R(e);SBLOCK::S(C)
- R(e);OGATEB::QAR2(I),XR(e)
- R(e);N_GUARD::QAB(I)
- P(b);N_GUARD::S(C)
- P(d);N_GUARD::R1(A),XP(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).