MESON Chess Problem Database
Problem Display
PID: 179964 (2q5/8/3p1NP1/3P2KP/3R3N/4B1kp/3n1R1p/8 w - - 0 1)
Gross, Erwin
Probleemblad, 1973
#2
9 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qg4+
- 2.Rxg4#
- 1...Qf5+
- 2.Sxf5#
- 1...Qa6
- 2.Sf5#
- 2.Rg4#
- 1...Qb7
- 2.Sf5#
- 2.Rg4#
- 1...Qc1
- 2.Sf5#
- 2.Rg4#
- 1...Qc2
- 2.Rg4#
- 1...Qc3
- 2.Sf5#
- 2.Rg4#
- 1...Qc4
- 2.Sf5#
- 1...Qc5
- 2.Sf5#
- 2.Rg4#
- 1...Qc6
- 2.Sf5#
- 2.Rg4#
- 1...Qc7
- 2.Sf5#
- 2.Rg4#
- 1...Qa8
- 2.Sf5#
- 2.Rg4#
- 1...Qb8
- 2.Sf5#
- 2.Rg4#
- 1...Qd8
- 2.Sf5#
- 2.Rg4#
- 1...Qe8
- 2.Sf5#
- 2.Rg4#
- 1...Qf8
- 2.Sf5#
- 2.Rg4#
- 1...Qg8
- 2.Sf5#
- 2.Rg4#
- 1...Qh8
- 2.Sf5#
- 2.Rg4#
- 1...Sb1
- 2.Se4#
- 2.Rf3#
- 1...Sf1
- 2.Se4#
- 2.Rf3#
- 1...Sb3
- 2.Se4#
- 2.Rf3#
- 1...Sf3+
- 2.Rxf3#
- 1...Sc4
- 2.Se4#
- 2.Rf3#
- 1...Se4+
- 2.Sxe4#
- 1...Qg4+
- Tries
- 1.Rf1?
- threat
- 2.Bf2#
- 2.Bf4#
- 1...Qg4+
- 2.Rxg4#
- 1...Sf3+
- 2.Rxf3#
- 1...Se4+
- 2.Sxe4#
- 1...Sxf1
- 2.Se4#
- 1...h1Q
- 2.Bf4#
- 1...h1S
- 2.Bf4#
- 1...h1B
- 2.Bf4#
- 1...h1R
- 2.Bf4#
- 1...Qf5+!
- threat
- 1.Rfxd2?
- threat
- 2.Se4#
- 2.Bf2#
- 2.Bf4#
- 1...Qg4+
- 2.Rxg4#
- 1...h1Q
- 2.Bf4#
- 1...h1S
- 2.Se4#
- 2.Bf4#
- 1...h1B
- 2.Bf4#
- 1...h1R
- 2.Se4#
- 2.Bf4#
- 1...Qe6
- 2.Bf2#
- 2.Bf4#
- 1...Qc2
- 2.Bf2#
- 2.Bf4#
- 2.Rg4#
- 1...Qd8
- 2.Bf2#
- 2.Bf4#
- 2.Rg4#
- 1...Qe8
- 2.Bf2#
- 2.Bf4#
- 2.Rg4#
- 1...Qf5+!
- threat
- 1.Rdxd2?
- threat
- 2.Se4#
- 2.Bf4#
- 2.Rf3#
- 1...Qf5+
- 2.Sxf5#
- 1...h1Q
- 2.Bf4#
- 1...h1B
- 2.Bf4#
- 1...Qe6
- 2.Bf4#
- 2.Rf3#
- 1...Qc2
- 2.Bf4#
- 2.Rf3#
- 1...Qc4
- 2.Sf5#
- 2.Rf3#
- 1...Qd8
- 2.Sf5#
- 2.Bf4#
- 2.Rf3#
- 1...Qe8
- 2.Sf5#
- 2.Bf4#
- 2.Rf3#
- 1...Qg4+!
- threat
- 1.Rf1?
- Keys
- 1.h6!
- threat
- 2.Sh5#
- 1...Qg4+
- 2.Rxg4#
- 1...Qf5+
- 2.Sxf5#
- 1...Sf3+
- 2.Rxf3#
- 1...Se4+
- 2.Sxe4#
- 1...Qd8
- 2.Sf5#
- 2.Rg4#
- threat
- 1.h6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(f);CHECK,N_GUARD::R1(C),XQ(f)
- Q(f);CHECK,N_GUARD::S(D),XQ(f)
- Q(f);N_GUARD::R1(C)
- Q(f);N_GUARD::S(D)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- S(a);CHECK,N_GUARD::S(H),XS(a)
- Tries
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::R1(C),XQ(f)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- S(a);CHECK,N_GUARD::S(H),XS(a)
- S(a);N_GUARD,XR(A)::S(H)
- P(b);::B(B)
- Refutation
- Q(f);CHECK
- Try
- R(A);XS(a)
- Threat
- DUALS(3)
- Vars
- Q(f);CHECK,N_GUARD::R1(C),XQ(f)
- P(b);::B(B)
- Refutation
- Q(f);CHECK
- Try
- R(C);XS(a)
- Threat
- DUALS(3)
- Vars
- Q(f);CHECK,N_GUARD::S(D),XQ(f)
- P(b);::B(B)
- Refutation
- Q(f);CHECK
- Try
- Actual
- P(G);
- Threat
- S(H)
- Vars
- Q(f);CHECK,N_GUARD::R1(C),XQ(f)
- Q(f);CHECK,N_GUARD::S(D),XQ(f)
- S(a);CHECK,N_GUARD::R1(A),XS(a)
- S(a);CHECK,N_GUARD::S(H),XS(a)
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).