MESON Chess Problem Database
Problem Display
PID: 218555 (4B2K/1Qn4b/2N5/4p1B1/1bP1k1nP/R7/4PP2/8 w - - 0 1)
Phelps, Francis Bradley
Cincinnati Commercial, 1881
#2
10 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Qb1#
- 1...Bd2
- 2.Qb1#
- 1...Bxa3
- 2.Qb1#
- 1...Bc3
- 2.Qb1#
- 1...Ba5
- 2.Qb1#
- 1...Bc5
- 2.Qb1#
- 1...Bd6
- 2.Qb1#
- 1...Be7
- 2.Qb1#
- 1...Bf8
- 2.Qb1#
- 1...Bf5
- 2.f3#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...Sb5
- 2.Qxh7#
- 1...Sd5
- 2.Qxh7#
- 1...Sa6
- 2.Qxh7#
- 1...Se6
- 2.Qxh7#
- 1...Sa8
- 2.Qxh7#
- 1...Sxe8
- 2.Qxh7#
- 1...Be1
- Tries
- 1.Sd4+?
- 1...Sd5
- 2.Qxd5#
- 1...Kxd4!
- 1...Sd5
- 1.Se7+?
- 1...Sd5
- 2.Qxd5#
- 1...Kd4!
- 1...Sd5
- 1.Bd7?
- threat
- 2.f3#
- 1...Sxf2
- 2.Re3#
- 1...Sh2
- 2.Re3#
- 1...Se6!
- threat
- 1.Qc8?
- threat
- 2.Qxg4#
- 2.f3#
- 1...Sxf2
- 2.Re3#
- 1...Bd2
- 2.f3#
- 1...Bf5
- 2.f3#
- 1...Sh2
- 2.Re3#
- 1...Se3
- 2.Rxe3#
- 2.f3#
- 1...Sf6
- 2.Re3#
- 2.f3#
- 1...Sh6
- 2.Re3#
- 2.f3#
- 1...Sd5
- 2.f3#
- 1...Se6!
- threat
- 1.Sd4+?
- Keys
- 1.Ra5!
- 1...Kf5
- 2.Sd4#
- 1...Bxa5
- 2.Qb1#
- 1...Sxf2
- 2.Rxe5#
- 1...Sxe8
- 2.Qxh7#
- 1...Be1
- 2.Qb1#
- 1...Bd2
- 2.Qb1#
- 1...Ba3
- 2.Qb1#
- 1...Bc3
- 2.Qb1#
- 1...Bc5
- 2.Qb1#
- 1...Bd6
- 2.Qb1#
- 1...Be7
- 2.Qb1#
- 1...Bf8
- 2.Qb1#
- 1...Bf5
- 2.f3#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...Sh2
- 2.Rxe5#
- 1...Se3
- 2.Rxe5#
- 1...Sf6
- 2.Rxe5#
- 1...Sh6
- 2.Rxe5#
- 1...Sb5
- 2.Qxh7#
- 1...Sd5
- 2.Qxh7#
- 1...Sa6
- 2.Qxh7#
- 1...Se6
- 2.Qxh7#
- 1...Sa8
- 2.Qxh7#
- 1...Kf5
- 1.Ra5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(a);OGATE::QAB(H)
- B(a);OGATE,XR(C)::QAB(H)
- B(f);SBLOCK::P(B)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD::B(I)
- S(e);OGATE::QAB(H),XB(f)
- S(e);OGATE,XB(I)::QAB(H),XB(f)
- Tries
- Try
- S(G);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB1(H),XS(e)
- Refutation
- K(b);P-FLIGHT,XS(G)
- Try
- S(G);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB1(H),XS(e)
- Refutation
- K(b);P-FLIGHT
- Try
- B(I);
- Threat
- P(B)
- Vars
- S(c);N_GUARD,XP(B)::R1(C)
- S(c);N_GUARD::R1(C)
- Refutation
- S(e);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XP(B)::R1(C)
- B(a);::P(B)
- B(f);::P(B)
- S(c);N_GUARD::R1(C)
- S(e);::P(B)
- Refutation
- S(e);
- Try
- Actual
- R(C);
- Vars
- K(b);P_SPINP(d),S_FLIGHT::S(G)
- B(a);OGATE,XR(C)::QAB(H)
- S(c);N_GUARD,XP(B)::R1(C),XP(d)
- S(e);OGATE,XB(I)::QAB(H),XB(f)
- B(a);OGATE::QAB(H)
- B(f);SBLOCK::P(B)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD::B(I)
- S(c);N_GUARD::R1(C),XP(d)
- S(e);OGATE::QAB(H),XB(f)
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).