MESON Chess Problem Database
Problem Display
PID: 165138 (8/6K1/1p2NRP1/4k3/1r6/b2Q4/6b1/8 w - - 0 1)
Zajic, Helmut
Die Schwalbe, 1970
#2
5 + 5
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qd4#
- 1...Rb2
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rb5
- 2.Qd4#
- 1...Rb1
- Tries
- 1.Sf4?
- threat
- 2.Rf5#
- 1...Rd4
- 2.Qf5#
- 1...Re4
- 2.Qd5#
- 1...Bh3
- 2.Qd5#
- 1...Be4
- 2.Qd6#
- 1...Bd5
- 2.Qxd5#
- 1...Rxf4!
- threat
- 1.Sc5?
- threat
- 2.Sd7#
- 2.Rf5#
- 2.Qd6#
- 1...Rd4
- 2.Qf5#
- 1...Re4
- 2.Sd7#
- 2.Qd6#
- 1...Rf4
- 2.Sd7#
- 2.Re6#
- 2.Qd6#
- 1...Bh3
- 2.Qd6#
- 1...Be4
- 2.Sd7#
- 2.Qd6#
- 1...Bd5
- 2.Sd7#
- 1...Bc6
- 2.Rf5#
- 2.Qd6#
- 1...bxc5!
- threat
- 1.Sg5?
- threat
- 2.Sf7#
- 2.Rf5#
- 2.Qd6#
- 1...Rd4
- 2.Qf5#
- 1...Rb1
- 2.Sf7#
- 2.Rf5#
- 1...Rb2
- 2.Sf7#
- 2.Rf5#
- 1...Rb3
- 2.Sf7#
- 2.Rf5#
- 1...Ra4
- 2.Sf7#
- 2.Rf5#
- 1...Rc4
- 2.Sf7#
- 2.Rf5#
- 1...Re4
- 2.Sf7#
- 1...Rf4
- 2.Sf7#
- 2.Re6#
- 1...Rg4
- 2.Sf7#
- 2.Rf5#
- 1...Rh4
- 2.Sf7#
- 2.Rf5#
- 1...Rb5
- 2.Sf7#
- 2.Rf5#
- 1...Bh3
- 2.Sf3#
- 2.Sf7#
- 2.Qd6#
- 1...Be4
- 2.Sf7#
- 2.Qd6#
- 1...Bd5!
- threat
- 1.Sd8?
- threat
- 2.Sf7#
- 2.Rf5#
- 1...Rd4
- 2.Qf5#
- 1...Re4
- 2.Sc6#
- 2.Sf7#
- 1...Rf4
- 2.Sf7#
- 2.Re6#
- 1...Bh3
- 2.Sc6#
- 2.Sf7#
- 1...Be4
- 2.Sf7#
- 2.Qd6#
- 1...Bd5!
- threat
- 1.Sf8?
- threat
- 2.Sd7#
- 2.Rf5#
- 1...Rd4
- 2.Qf5#
- 1...Bd5
- 2.Sd7#
- 1...Re4
- 2.Sd7#
- 1...Rf4
- 2.Sd7#
- 2.Re6#
- 1...Be4
- 2.Sd7#
- 2.Qd6#
- 1...Bc6
- 2.Rf5#
- 1...Bh3!
- threat
- 1.Sf4?
- Keys
- 1.Sc7!
- threat
- 2.Rf5#
- 1...Rd4
- 2.Qf5#
- 1...Re4
- 2.Qd5#
- 1...Rf4
- 2.Re6#
- 1...Bh3
- 2.Qd5#
- 1...Be4
- 2.Qd6#
- 1...Bd5
- 2.Qxd5#
- threat
- 1.Sc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(c);N_GUARD::QAB1(A)
- R(c);N_GUARD::QAB1(A),XR(c)
- Tries
- Try
- S(B);
- Threat
- R1(C)
- Vars
- R(c);SBLOCK::QAR1(A)
- R(c);S_CUTB(a)::QAR1(A)
- B(a);N_GUARD::QAR1(A)
- B(a);SBLOCK::QAB1(A)
- B(a);N_GUARD::QAR1(A),XB(a)
- Refutation
- R(c);XS(B)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(c);SBLOCK::QAR1(A)
- B(a);::QAB1(A)
- B(a);::S(B)
- Refutation
- P(e);XS(B)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(c);SBLOCK::QAR1(A)
- R(c);::S(B)
- Refutation
- B(a);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK::QAR1(A)
- Refutation
- B(a);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(c);SBLOCK::QAR1(A)
- B(a);::S(B)
- R(c);::S(B)
- B(a);::R1(C)
- Refutation
- B(a);
- Try
- Actual
- S(B);
- Threat
- R1(C)
- Vars
- R(c);SBLOCK::QAR1(A)
- R(c);S_CUTB(a)::QAR1(A)
- R(c);SBLOCK::R1(C)
- B(a);N_GUARD::QAR1(A)
- B(a);SBLOCK::QAB1(A)
- B(a);N_GUARD::QAR1(A),XB(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).