MESON Chess Problem Database
Problem Display
PID: 213170 (5rn1/1p1B1p2/1P3P2/3knNK1/pP4R1/1R3p2/6QB/3r4 w - - 0 1)
Klemanic, Emil
1st Prize, Suomen Shakki, 1992
#2
10 + 9
| 15148 | Sadier Collection | 2020 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rd4#
- 1...Rb1
- 2.Rd4#
- 1...Rc1
- 2.Rd4#
- 1...Re1
- 2.Rd4#
- 1...Rf1
- 2.Rd4#
- 1...Rg1
- 2.Rd4#
- 1...Rh1
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Sd3
- 2.Se3#
- 2.Rd4#
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sc6
- 2.Se3#
- 2.Qxf3#
- 1...Sg6
- 2.Se3#
- 2.Qxf3#
- 1...Ra1
- Tries
- 1.Rc3?
- threat
- 2.Rc5#
- 1...Sxg4
- 2.Qxf3#
- 1...Sxd7
- 2.Qa2#
- 1...Rc1
- 2.Rd4#
- 1...Sd3
- 2.Se3#
- 2.Rd4#
- 2.Qxf3#
- 2.Qa2#
- 1...Sc4
- 2.Qxf3#
- 1...Rc8!
- threat
- 1.Rd3+?
- 1...Sxd3
- 2.Se3#
- 2.Rd4#
- 2.Qxf3#
- 2.Qa2#
- 1...Rxd3!
- 1...Sxd3
- 1.Re3?
- threat
- 2.Rxe5#
- 1...Sxg4
- 2.Qa2#
- 1...Sxd7
- 2.Qxf3#
- 1...Rd4
- 2.Rxd4#
- 1...Re1
- 2.Rd4#
- 1...Sd3
- 2.Rd4#
- 2.Qxf3#
- 2.Qa2#
- 1...Sc4
- 2.Qxf3#
- 1...Sc6
- 2.Qxf3#
- 2.Qa2#
- 1...Sg6
- 2.Qxf3#
- 2.Qa2#
- 1...Re8!
- threat
- 1.Qa2?
- threat
- 2.Rd3#
- 1...Sxg4
- 2.Re3#
- 1...Sxd7
- 2.Rc3#
- 1...axb3
- 2.Qa5#
- 1...Rd4
- 2.Rxd4#
- 1...Rd3
- 2.Rxd3#
- 1...Sd3
- 2.Se3#
- 2.Rb1#
- 2.Rb2#
- 2.Ra3#
- 2.Rc3#
- 2.Rxd3#
- 2.Rd4#
- 1...Sc4!
- threat
- 1.Qc2?
- threat
- 2.Qe4#
- 2.Qc5#
- 1...Sxd7
- 2.Qe4#
- 2.Qc4#
- 1...Sxf6
- 2.Qc5#
- 1...Rc1
- 2.Rd4#
- 2.Qe4#
- 1...Re1
- 2.Rd4#
- 2.Qc5#
- 1...Rd3
- 2.Qc5#
- 1...Rd4
- 2.Rxd4#
- 2.Qc5#
- 1...Rc8
- 2.Qe4#
- 1...Sd3
- 2.Se3#
- 2.Rd4#
- 2.Qc4#
- 1...Sc4
- 2.Qe4#
- 2.Qxc4#
- 1...Sxg4!
- threat
- 1.Qd2+?
- 1...Sd3
- 2.Se3#
- 2.Rxd3#
- 2.Rd4#
- 1...Rxd2!
- 1...Sd3
- 1.Rc3?
- Keys
- 1.Rxf3!
- threat
- 2.Rd3#
- 1...Sxf3+
- 2.Qxf3#
- 1...Sxg4
- 2.Rc3#
- 1...Sxd7
- 2.Re3#
- 1...Rd4
- 2.Rxd4#
- 1...Rd3
- 2.Rxd3#
- 1...Sd3
- 2.Se3#
- 2.Rf1#
- 2.Rf2#
- 2.Rxd3#
- 2.Re3#
- 2.Rh3#
- 2.Rd4#
- 2.Qa2#
- threat
- 1.Rxf3!
Anticipated by 107799(1982)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::R1(E)
- R(a);N_GUARD::R1(E),XR(a)
- S(e);N_GUARD::QAB(A),XP(b)
- Tries
- Try
- R(C);
- Threat
- R1(C)
- Vars
- S(e);N_GUARD,XR(E)::QAB(A),XP(b)
- S(e);N_GUARD,XB(J)::QAB(A)
- R(a);N_GUARD::R1(E)
- S(e);N_GUARD::QAB(A),XP(b)
- Refutation
- R(h);
- Try
- R(C);CHECK
- Refutation
- R(a);XR(C)
- Try
- R(C);
- Threat
- R1(C),XS(e)
- Vars
- S(e);N_GUARD,XR(E)::QAB(A)
- S(e);N_GUARD,XB(J)::QAB(A),XP(b)
- R(a);N_GUARD::R1(E),XR(a)
- R(a);N_GUARD::R1(E)
- S(e);N_GUARD::QAB(A),XP(b)
- Refutation
- R(h);
- Try
- Q(A);N_PINP(b)
- Threat
- QAB(A)+R(C),DCHECK
- Vars
- S(e);N_GUARD,XR(E)::QAB(A)+R(C)
- S(e);N_GUARD,XB(J)::QAB(A)+R(C)
- P(c);OGATE,P_SPINP(c),XR(C)::QAR(A)
- R(a);N_GUARD::R1(E),XR(a)
- R(a);::QAB(A)+R(C),DCHECK,XR(a)
- Refutation
- S(e);
- Try
- Q(A);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(i);XP(I)::QAR1(A)
- R(a);::QAR1(A)
- R(h);::QAB1(A)
- Refutation
- S(e);XR(E)
- Try
- Q(A);CHECK,N_PINP(b)
- Refutation
- R(a);XQ(A)
- Try
- Actual
- R(C);XP(b)
- Threat
- QAB(A)+R(C),DCHECK
- Vars
- S(e);CHECK,OGATE,P_SPINS(e),XR(C)::QAB(A),XS(e)
- S(e);N_GUARD,XR(E)::QAB(A)+R(C)
- S(e);N_GUARD,XB(J)::QAB(A)+R(C)
- R(a);N_GUARD::R1(E),XR(a)
- R(a);::QAB(A)+R(C),DCHECK,XR(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).