MESON Chess Problem Database
Problem Display
PID: 193843 (4R3/6Bn/n1PkNp2/1p1Pp3/1p4p1/1B2Q1K1/8/8 w - - 0 1)
Rothstein, Louis
Pittsburgh Gazette-Times, 1916
#2
8 + 8
| 6490 | yacpdb | 2019 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...e4
- 2.Qf4#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sc5
- Tries
- 1.Kf2?
- 1...e4
- 2.Qf4#
- 2.Qg3#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...g3+!
- 1...e4
- 1.Kg2?
- 1...e4
- 2.Qf4#
- 2.Qg3#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...g3!
- 1...e4
- 1.Kh2?
- 1...e4
- 2.Qf4#
- 2.Qg3#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...g3+!
- 1...e4
- 1.Kxg4?
- 1...e4
- 2.Qf4#
- 2.Qg3#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5+!
- 1...e4
- 1.Kh4?
- 1...e4
- 2.Qf4#
- 2.Qg3#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...g3!
- 1...e4
- 1.Ba2?
- 1...e4
- 2.Qf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...b3!
- 1...e4
- 1.Bxf6?
- threat
- 2.Bxe5#
- 2.Be7#
- 2.Rd8#
- 2.Qxe5#
- 1...Sc5
- 2.Bxe5#
- 2.Be7#
- 2.Qxc5#
- 2.Qxe5#
- 1...Sb8
- 2.Bxe5#
- 2.Be7#
- 2.Qc5#
- 2.Qxe5#
- 1...Sf8
- 2.Bxe5#
- 2.Be7#
- 2.Qxe5#
- 1...e4
- 2.Rd8#
- 2.Qf4#
- 1...Sxf6!
- threat
- 1.Bh6?
- 1...e4
- 2.Bf4#
- 2.Qf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5!
- 1...e4
- 1.Qc1?
- 1...e4
- 2.Qf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5!
- 1...e4
- 1.Qf2?
- 1...e4
- 2.Qf4#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5!
- 1...e4
- 1.Qb6?
- threat
- 2.Qd8#
- 1...Sc5
- 2.Qxc5#
- 2.Qc7#
- 2.Qb8#
- 1...Sc7
- 2.Qc5#
- 2.Qxc7#
- 1...Sb8
- 2.Qc5#
- 2.Qc7#
- 2.Qxb8#
- 1...Sf8
- 2.Bxf8#
- 1...e4!
- threat
- 1.Qa7?
- threat
- 2.Rd8#
- 2.Qd7#
- 2.Qe7#
- 1...Sc5
- 2.Qxc5#
- 2.Qb8#
- 2.Qc7#
- 2.Qe7#
- 1...Sc7
- 2.Qc5#
- 2.Qxc7#
- 1...Sb8
- 2.Qc5#
- 2.Qxb8#
- 2.Qc7#
- 2.Qe7#
- 1...Sf8
- 2.Bxf8#
- 2.Qe7#
- 1...e4!
- threat
- 1.Qe4?
- 1...Sc7
- 2.Qxb4#
- 1...Sb8
- 2.Qxb4#
- 1...Sg5
- 2.Bf8#
- 1...Sf8
- 2.Bxf8#
- 1...f5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sc5!
- 1...Sc7
- 1.Kf2?
- Keys
- 1.Sd4!
- threat
- 2.Sxb5#
- 1...Kc5
- 2.Sf5#
- 1...Kc7
- 2.Sxb5#
- 1...exd4
- 2.Qe7#
- 1...Sc7
- 2.Sf5#
- threat
- 1.Sd4!
This anticipates 173745(1926)
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- P(d);OGATEB::QAB(B)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(b);CHECK
- Try
- K(C);P-FLIGHT
- Vars
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(b);
- Try
- K(C);S_FLIGHT
- Vars
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(b);CHECK
- Try
- K(C);P-FLIGHT,XP(b)
- Vars
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(g);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(b);
- Try
- B(A);
- Vars
- P(d);OGATEB::QAB(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(a);
- Try
- B(G);XP(g)
- Threat
- DUALS(4)
- Refutation
- S(h);XB(G)
- Try
- B(G);
- Vars
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(g);
- Try
- Q(B);
- Vars
- P(d);OGATEB::QAB(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(g);
- Try
- Q(B);
- Vars
- P(d);OGATEB::QAB(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(g);
- Try
- Q(B);
- Threat
- QAR2(B)
- Vars
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- P(d);
- Try
- Q(B);
- Threat
- DUALS(3)
- Refutation
- P(d);
- Try
- Q(B);
- Vars
- S(e);N_GUARD::QAB(B),XP(a)
- S(h);N_GUARD::B(G)
- S(h);N_GUARD::B(G),XS(h)
- Refutation
- S(e);
- Try
- Actual
- S(F);
- Threat
- S(F),XP(c)
- Vars
- K(f);S_FLIGHT::QAB(B)+S(F)
- K(f);S_FLIGHT::S(F),XP(c)
- P(d);OGATE,XS(F)::QAB1(B)
- S(e);SBLOCK::S(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).