MESON Chess Problem Database
Problem Display
PID: 174100 (3R4/3n1N2/1N6/Kp1n2Q1/1B1k2P1/3p1P2/3p4/3B4 w - - 0 1)
Machler, Emil
1st Comm., Berlingozzo-Coutinho Festival, 1985
#2
9 + 6
| 1077 | Boletim da UBP | 1986 |
| 5454 | Near Snap | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Bc5#
- 2.Qc5#
- 2.Qe5#
- 1...Se3
- 2.Qf4#
- 2.Qf6#
- 2.Qc5#
- 2.Qe5#
- 2.Qg7#
- 1...Sxb4
- 2.Qe5#
- 1...Sf4
- 2.Qxf4#
- 2.Qc5#
- 2.Qe5#
- 1...S5xb6
- 2.Qc5#
- 1...S5f6
- 2.Qc5#
- 2.Qe5#
- 1...Sc7
- 2.Qf4#
- 2.Qc5#
- 2.Qe5#
- 1...Se7
- 2.Qf4#
- 2.Qc5#
- 2.Qe5#
- 1...Sc5
- 2.Rxd5#
- 2.Qe5#
- 1...Se5
- 2.Rxd5#
- 2.Qf4#
- 2.Qxe5#
- 1...S7xb6
- 2.Qf4#
- 1...S7f6
- 2.Qe5#
- 1...Sb8
- 2.Rxd5#
- 2.Qf4#
- 2.Qe5#
- 1...Sf8
- 2.Rxd5#
- 2.Qf4#
- 2.Qe5#
- 1...Sc3
- Tries
- 1.Sxd7?
- 1...Sxb4
- 2.Qc5#
- 1...Sf4
- 2.Qc5#
- 1...Sc3
- 2.Qc5#
- 1...Se3
- 2.Qc5#
- 1...Sb6
- 2.Sxb6#
- 2.Qc5#
- 1...Sf6
- 2.Qc5#
- 1...Sc7
- 2.Qc5#
- 1...Se7
- 2.Qc5#
- 1...Kc4!
- 1...Sxb4
- 1.Bc3+?
- 1...Kc5
- 2.Rc8#
- 2.Qxd5#
- 1...Sxc3
- 2.Qe5#
- 1...Kxc3!
- 1...Kc5
- 1.Bc5+?
- 1...Kxc5
- 2.Qxd5#
- 1...Sxc5
- 2.Qe5#
- 1...Kc3!
- 1...Kxc5
- 1.Re8?
- threat
- 2.Re4#
- 2.Qxd5#
- 1...S5xb6
- 2.Re4#
- 1...S7xb6
- 2.Re4#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Re4#
- 2.Qxe3#
- 2.Qf4#
- 1...Sf4
- 2.Re4#
- 2.Qxf4#
- 1...S5f6
- 2.Qe3#
- 1...Sc7
- 2.Re4#
- 2.Qe3#
- 2.Qf4#
- 1...Se7
- 2.Qf4#
- 1...Sc5
- 2.Qxd5#
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...S7f6
- 2.Qe5#
- 1...Sxb4!
- threat
- 1.Qe7?
- threat
- 2.Qe4#
- 1...Sxb4
- 2.Qe5#
- 1...Se5
- 2.Qc5#
- 2.Qxe5#
- 1...Sc3
- 2.Bc5#
- 2.Qc5#
- 2.Qe5#
- 1...S5f6
- 2.Qc5#
- 2.Qe5#
- 1...Sc5
- 2.Rxd5#
- 2.Qxc5#
- 2.Qe5#
- 1...S7f6
- 2.Qc5#
- 2.Qe5#
- 1...Sxe7!
- threat
- 1.Qf5?
- threat
- 2.Qe4#
- 1...Sxb4
- 2.Qe5#
- 1...Sc3
- 2.Bc5#
- 2.Qc5#
- 2.Qe5#
- 1...S5f6
- 2.Qc5#
- 2.Qe5#
- 1...Sc5
- 2.Qe5#
- 1...S7f6
- 2.Qe5#
- 1...Ke3!
- threat
- 1.Sxd7?
- Keys
- 1.Rc8!
- 1...Sxb4
- 2.Qf4#
- 1...S5xb6
- 2.Bc3#
- 1...S7xb6
- 2.Qe5#
- 1...Sf4
- 2.Qxf4#
- 1...Sc3
- 2.Bxc3#
- 1...Se3
- 2.Bc3#
- 2.Qf4#
- 1...S5f6
- 2.Bc3#
- 1...Sc7
- 2.Qf4#
- 1...Se7
- 2.Bc3#
- 2.Qf4#
- 1...Sc5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...S7f6
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sf8
- 2.Qe5#
- 1...Sxb4
- 1.Rc8!
Anticipated by 78544(1939)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- S(e);P_SPINS(f),XB(C)::QAB1(F)
- S(e);OGATE,P_SPINS(f),XS(G)::QAB1(F)
- S(f);P_SPINS(e),XS(G)::QAR2(F)
- S(f);N_GUARD,P_SPINS(e)::QAB1(F)
- Tries
- Try
- S(G);XS(f)
- Vars
- S(e);OGATE,XB(C)::QAB1(F)
- S(e);OGATE::QAB1(F)
- S(e);OGATE,SBLOCK::QAB1(F)
- Refutation
- K(c);P-FLIGHT
- Try
- B(C);CHECK
- Vars
- S(e);P_SPINS(f),SBLOCK,XB(C)::QAB1(F)
- Refutation
- K(c);S_FLIGHT,XB(C)
- Try
- B(C);CHECK
- Vars
- K(c);P_SPINS(e),S_FLIGHT,XB(C)::QAR1(F),XS(e)
- S(f);P_SPINS(e),SBLOCK,XB(C)::QAB1(F)
- Refutation
- K(c);S_FLIGHT
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- S(e);XS(G)::R1(I)
- S(f);XS(G)::R1(I)
- S(e);N_GUARD::QAB1(F)
- S(e);N_GUARD::QAR2(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- S(f);N_GUARD::QAB1(F)
- Refutation
- S(e);XB(C)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(e);P_SPINS(f),XB(C)::QAB1(F)
- Refutation
- S(e);P_SPINS(f),XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(e);P_SPINS(f),XB(C)::QAB1(F)
- S(f);N_GUARD,P_SPINS(e)::QAB1(F)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- R(I);
- Vars
- S(e);N_GUARD,XB(C)::QAR2(F)
- S(e);N_GUARD,XS(G)::B(C)
- S(f);N_GUARD,XS(G)::QAB1(F)
- S(e);N_GUARD::QAR2(F),XS(e)
- S(e);N_GUARD::B(C),XS(e)
- S(e);N_GUARD::B(C)
- S(e);N_GUARD::QAR2(F)
- S(f);N_GUARD::QAB1(F)
- S(f);N_GUARD::QAB1(F),XS(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).