MESON Chess Problem Database
Problem Display
PID: 214798 (4B3/7b/2N1QP2/1Pp3R1/8/2p2p2/K1k1p3/2B1R3 w - - 0 1)
Hawkins, Xenophon
St. Louis Globe Democrat, 1877
#2
9 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...c4
- 2.Sb4#
- 1...Bd3
- Tries
- 1.Se5?
- threat
- 2.Qb3#
- 1...Bg8
- 2.Bg6#
- 1...c4!
- threat
- 1.Bf4?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Rc1#
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Bh5?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Bf7?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 2.Qf5#
- 2.Qe4#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Rgg1?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Rg2?
- 1...fxg2
- 2.Qxe2#
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...fxg2
- 1.Rg4?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Rd5?
- 1...c4
- 2.Sb4#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 2.Qf5#
- 2.Qe4#
- 1...f2
- 2.Qxe2#
- 1...Bd3!
- 1...c4
- 1.Rh5?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Rg7?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Rg8?
- 1...Bxg8
- 2.Bg6#
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...Bxg8
- 1.Qc4?
- 1...Bd3
- 2.Qb3#
- 2.Qa4#
- 1...Be4
- 2.Qxe4#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Bf5!
- 1...Bd3
- 1.Qd5?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2!
- 1...c4
- 1.b6?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.f7?
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qf5#
- 2.Qe4#
- 2.Qg6#
- 1...f2
- 2.Qxe2#
- 1...Kd3!
- 1...c4
- 1.Se5?
- Keys
- 1.Rg3!
- 1...Kd3
- 2.Qxe2#
- 1...c4
- 2.Sb4#
- 1...Bd3
- 2.Qb3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Bxg6#
- 1...Bg8
- 2.Bg6#
- 1...f2
- 2.Qb3#
- 2.Qxe2#
- 1...Kd3
- 1.Rg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- P(e);N_GUARD::S(F)
- Tries
- Try
- S(F);
- Threat
- QAB1(G)
- Vars
- B(f);N_GUARD,P_PINQ(G)::B(I)
- Refutation
- P(e);
- Try
- B(A);
- Vars
- P(e);N_GUARD::S(F)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(I);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- B(I);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- R(E);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- R(E);P_PINP(b)
- Vars
- P(d);N_GUARD,N_SPINP(b),XR(E)::QAR2(G),XP(b)
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD,N_SPINP(b)::QAR2(G),XP(b)
- Refutation
- K(a);N_SPINP(b),S_FLIGHT
- Try
- R(E);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- R(E);
- Vars
- P(e);N_GUARD::S(F)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- B(f);
- Try
- R(E);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- R(E);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- R(E);
- Vars
- B(f);N_GUARD,P_PINQ(G),XR(E)::B(I)
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(G);P_PINP(c)
- Vars
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- B(f);
- Try
- Q(G);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- Refutation
- P(d);
- Try
- P(D);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- P(H);
- Vars
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- P(d);N_GUARD::QAR2(G),XP(b)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- R(E);
- Vars
- K(a);P_SPINP(d),S_FLIGHT::QAB1(G),XP(b)
- P(e);N_GUARD::S(F)
- B(f);SBLOCK::QAB1(G)
- B(f);N_GUARD::QAB(G),XB(f)
- B(f);N_GUARD::B(I),XB(f)
- B(f);N_GUARD,P_PINQ(G)::B(I)
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).