MESON Chess Problem Database
Problem Display
PID: 238766 (6Q1/2p1K3/2p5/1R1R4/2k1N3/8/rp4n1/2N5 w - - 0 1)
Janevski, Zivko
Mat, 1977
#2
6 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...cxd5
- 2.Qxd5#
- 1...cxd5
- Tries
- 1.Sxa2?
- threat
- 2.Sd2#
- 2.Rb4#
- 1...cxb5
- 2.Sd2#
- 2.Rd1#
- 2.Rd2#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...cxd5
- 2.Qxd5#
- 1...b1Q
- 2.Sd2#
- 1...b1S
- 2.Rb4#
- 1...b1R
- 2.Sd2#
- 1...c5!
- threat
- 1.Sd3?
- threat
- 2.Se5#
- 2.Rb4#
- 1...cxb5
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...cxd5
- 2.Qxd5#
- 1...b1Q
- 2.Se5#
- 1...b1R
- 2.Se5#
- 1...Ra4
- 2.Sxb2#
- 2.Se5#
- 1...c5!
- threat
- 1.Rb3?
- threat
- 2.Sd2#
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...bxc1Q
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...bxc1S
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...bxc1B
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...bxc1R
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...b1Q
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...b1S
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...b1B
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...b1R
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Ra5
- 2.Sd2#
- 1...Ra8
- 2.Sd2#
- 2.Rd8#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sd2#
- 1...cxd5!
- threat
- 1.Qg3?
- threat
- 2.Sd2#
- 2.Qb3#
- 2.Qc3#
- 2.Qd3#
- 1...bxc1Q
- 2.Qb3#
- 2.Qd3#
- 1...bxc1S
- 2.Qc3#
- 1...bxc1B
- 2.Qb3#
- 2.Qc3#
- 2.Qd3#
- 1...bxc1R
- 2.Qb3#
- 2.Qd3#
- 1...cxb5
- 2.Qb3#
- 1...cxd5
- 2.Qd3#
- 1...c5
- 2.Qb3#
- 2.Qd3#
- 1...b1Q
- 2.Qc3#
- 1...b1S
- 2.Qb3#
- 2.Qd3#
- 1...b1B
- 2.Qb3#
- 2.Qc3#
- 1...b1R
- 2.Qc3#
- 2.Qd3#
- 1...Ra3
- 2.Sd2#
- 1...Se1
- 2.Sd2#
- 2.Qb3#
- 2.Qc3#
- 1...Sf4
- 2.Sd2#
- 2.Qb3#
- 2.Qc3#
- 1...Se3!
- threat
- 1.Qg7?
- threat
- 2.Sd2#
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...bxc1Q
- 2.Qd4#
- 1...bxc1S
- 2.Qc3#
- 2.Qd4#
- 1...bxc1B
- 2.Qc3#
- 2.Qd4#
- 1...bxc1R
- 2.Qd4#
- 1...cxb5
- 2.Rd4#
- 2.Qd4#
- 1...c5
- 2.Rdxc5#
- 1...b1Q
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...b1S
- 2.Rdc5#
- 2.Qd4#
- 1...b1B
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...b1R
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...Ra3
- 2.Sd2#
- 2.Rdc5#
- 2.Qd4#
- 1...cxd5!
- threat
- 1.Qb8?
- threat
- 2.Rbc5#
- 1...cxb5
- 2.Qxb5#
- 1...cxd5
- 2.Rb4#
- 1...c5
- 2.Rbxc5#
- 1...Ra5!
- threat
- 1.Qh8?
- threat
- 2.Sd2#
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...bxc1Q
- 2.Qd4#
- 1...bxc1S
- 2.Qc3#
- 2.Qd4#
- 1...bxc1B
- 2.Qc3#
- 2.Qd4#
- 1...bxc1R
- 2.Qd4#
- 1...cxb5
- 2.Rd4#
- 2.Qd4#
- 1...c5
- 2.Rdxc5#
- 1...b1Q
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...b1S
- 2.Rdc5#
- 2.Qd4#
- 1...b1B
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...b1R
- 2.Rdc5#
- 2.Qc3#
- 2.Qd4#
- 1...Ra3
- 2.Sd2#
- 2.Rdc5#
- 2.Qd4#
- 1...cxd5!
- threat
- 1.Sxa2?
- Keys
- 1.Qd8!
- threat
- 2.Rdc5#
- 1...cxb5
- 2.Rd4#
- 1...cxd5
- 2.Qxd5#
- 1...c5
- 2.Rdxc5#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(e);OGATE,P_SPINP(e),XR(D)::QAB1(F),XP(e)
- Tries
- Try
- S(A);XR(a)
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,P_SPINP(e),XR(D)::QAB1(F),XP(e)
- P(b);::S(B)
- P(b);::R1(C)
- Refutation
- P(e);
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,P_SPINP(e),XR(D)::QAB1(F),XP(e)
- P(b);::S(A)
- Refutation
- P(e);
- Try
- R(C);
- Threat
- DUALS(7)
- Vars
- R(a);::S(B)
- S(c);::S(B)
- Refutation
- P(e);P_SPINP(e),XR(D)
- Try
- Q(F);
- Threat
- DUALS(4)
- Vars
- P(b);XS(A)::QAR1(F)
- P(e);XR(C)::QAB1(F)
- P(e);XR(D)::QAB1(F)
- P(b);::QAR1(F)
- R(a);::S(B)
- Refutation
- S(c);
- Try
- Q(F);
- Threat
- DUALS(4)
- Vars
- P(b);XS(A)::QAR1(F)
- P(e);::R1(D),XP(e)
- Refutation
- P(e);XR(D)
- Try
- Q(F);
- Threat
- R1(C)
- Vars
- P(e);OGATE,XR(C)::QAB1(F),XP(e)
- P(e);SBLOCK,XR(D)::R1(C)
- P(e);::R1(C),XP(e)
- Refutation
- R(a);
- Try
- Q(F);
- Threat
- DUALS(4)
- Vars
- P(b);XS(A)::QAR1(F)
- P(e);::R1(D),XP(e)
- Refutation
- P(e);XR(D)
- Try
- Actual
- Q(F);
- Threat
- R1(D)
- Vars
- P(e);SBLOCK,XR(C)::R1(D)
- P(e);OGATE,XR(D)::QAB1(F),XP(e)
- P(e);::R1(D),XP(e)
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).