MESON Chess Problem Database
Problem Display
PID: 208184 (4R3/Q2r4/3b4/3N4/2p2p2/1n1kPP2/3P4/3K4 w - - 0 1)
Wheeler, Charles Henry
Detroit Free Press, 1875
#2
7 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rh7
- 2.Qxh7#
- 1...Rd8
- 2.Qh7#
- 1...Ba3
- 2.Sxf4#
- 1...Bb4
- 2.Sxb4#
- 2.Sxf4#
- 1...Bc5
- 2.Sxf4#
- 1...Be5
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 1...Be7
- 2.Sxf4#
- 1...Bb8
- 2.Sb4#
- 1...Bf8
- 2.Sxf4#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sxd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Sb4#
- 1...c3
- 2.Qa6#
- 1...fxe3
- 2.Rxe3#
- 2.Qxe3#
- 1...Rh7
- Tries
- 1.Re5?
- threat
- 2.Sxf4#
- 1...Bxe5
- 2.Sb4#
- 1...Sxd2
- 2.Qd4#
- 1...fxe3
- 2.Sf4#
- 2.Rxe3#
- 2.Qxe3#
- 1...c3
- 2.Qa6#
- 1...Rf7!
- threat
- 1.Qc5?
- threat
- 2.Sb4#
- 1...Bxc5
- 2.Sxf4#
- 1...Sxd2
- 2.Qd4#
- 1...Rb7!
- threat
- 1.Qa1?
- threat
- 2.Qc3#
- 2.Qb1#
- 1...Sxd2
- 2.Qc3#
- 2.Qd4#
- 1...fxe3
- 2.Rxe3#
- 2.Qc3#
- 1...c3
- 2.Qxc3#
- 2.Qa6#
- 1...Bb4
- 2.Sxb4#
- 2.Sxf4#
- 2.Qb1#
- 1...Be5
- 2.Sb4#
- 2.Qb1#
- 1...Sd4
- 2.Qc3#
- 2.Qxd4#
- 1...Sxa1!
- threat
- 1.Qa5?
- threat
- 2.Qc3#
- 1...c3
- 2.Qxc3#
- 2.Qb5#
- 2.Qa6#
- 1...Bb4
- 2.Sxb4#
- 2.Sxf4#
- 1...Be5
- 2.Sb4#
- 1...Sxa5!
- threat
- 1.Re5?
- Keys
- 1.Rd8!
- 1...Rxa7
- 2.Sb4#
- 2.Sxf4#
- 1...Rxd8
- 2.Qh7#
- 1...Sxd2
- 2.Qd4#
- 1...fxe3
- 2.Qxe3#
- 1...c3
- 2.Qa6#
- 1...Rb7
- 2.Sxf4#
- 1...Rc7
- 2.Sb4#
- 2.Sxf4#
- 1...Re7
- 2.Sb4#
- 2.Sxf4#
- 1...Rf7
- 2.Sb4#
- 1...Rg7
- 2.Sb4#
- 2.Sxf4#
- 1...Rh7
- 2.Sb4#
- 2.Sxf4#
- 2.Qxh7#
- 1...Ba3
- 2.Sxf4#
- 1...Bb4
- 2.Sxb4#
- 2.Sxf4#
- 1...Bc5
- 2.Sxf4#
- 1...Be5
- 2.Sb4#
- 1...Bc7
- 2.Sb4#
- 1...Be7
- 2.Sxf4#
- 1...Bb8
- 2.Sb4#
- 1...Bf8
- 2.Sxf4#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sc5
- 2.Sb4#
- 1...Rxa7
- 1.Rd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(f);OGATE::QAB(F),XR(f)
- R(f);OGATE::QAB(F)
- B(e);N_GUARD::S(E),XP(d)
- B(e);N_GUARD::S(E)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD,XP(B)::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- S(a);S_CUTB(e)::S(E)
- P(c);OGATEB::QAB(F)
- Tries
- Try
- R(G);
- Threat
- S(E),XP(d)
- Vars
- B(e);N_GUARD,XR(G)::S(E)
- S(a);N_GUARD,XP(B)::QAR1(F)
- P(c);OGATEB::QAB(F)
- Refutation
- R(f);
- Try
- Q(F);
- Threat
- S(E)
- Vars
- B(e);N_GUARD,XQ(F)::S(E),XP(d)
- S(a);N_GUARD,XP(B)::QAR1(F)
- Refutation
- R(f);
- Try
- Q(F);
- Threat
- DUALS(2)
- Refutation
- S(a);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- B(e);N_GUARD::S(E)
- Refutation
- S(a);XQ(F)
- Try
- Actual
- R(G);
- Vars
- R(f);OGATE,XR(G)::QAB(F)
- S(a);N_GUARD,XP(B)::QAR1(F)
- P(d);OGATE,XP(C)::QAR1(F),XP(d)
- P(c);OGATEB::QAB(F)
- R(f);S_CUTB(e)::S(E),XP(d)
- R(f);S_CUTB(e)::S(E)
- B(e);N_GUARD::S(E),XP(d)
- B(e);N_GUARD::S(E)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- S(a);S_CUTB(e)::S(E)
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).