MESON Chess Problem Database
Problem Display
PID: 149586 (k5NR/ppKp4/3p4/1R6/8/1Qp5/6n1/4rr1q w - - 0 1)
Pribyl, Vaclav
Die Schwalbe, 1968
#2
5 + 10
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...a5
- 2.Rxa5#
- 1...b6
- 2.Qd5#
- 1...a5
- Tries
- 1.Sf6+?
- 1...Re8
- 2.Rxe8#
- 1...Qxh8!
- 1...Re8
- 1.Sh6+?
- 1...Re8
- 2.Rxe8#
- 1...Rf8!
- 1...Re8
- 1.Se7+?
- 1...Rf8
- 2.Rxf8#
- 1...Qxh8!
- 1...Rf8
- 1.Rf5?
- threat
- 2.Qxb7#
- 1...Rb1
- 2.Sh6#
- 1...Se3
- 2.Sh6#
- 1...Sh4
- 2.Se7#
- 1...b5
- 2.Qd5#
- 1...b6
- 2.Qd5#
- 1...Sf4!
- threat
- 1.Rbh5?
- threat
- 2.Qxb7#
- 1...Rb1
- 2.Sf6#
- 1...Se3
- 2.Sf6#
- 1...Sf4
- 2.Se7#
- 1...b5
- 2.Qd5#
- 1...b6
- 2.Qd5#
- 1...Sh4!
- threat
- 1.Sf6+?
- Keys
- 1.Re5!
- threat
- 2.Qxb7#
- 1...Rb1
- 2.Re8#
- 1...Se3
- 2.Re8#
- 1...Sf4
- 2.Sh6#
- 1...Sh4
- 2.Sf6#
- 1...b5
- 2.Qd5#
- 1...b6
- 2.Qd5#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- P(g);OGATEB::R(B),XP(g)
- P(h);OGATEB::QAB(A)
- Tries
- Try
- S(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::R(E),XR(a)
- Refutation
- Q(c);XR(E)
- Try
- S(D);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a)::R(E),XR(a)
- Refutation
- R(b);P_SPINR(b)
- Try
- S(D);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::R(E),XR(b)
- Refutation
- Q(c);XR(E)
- Try
- R(B);
- Threat
- QAB1(A),XP(h)
- Vars
- R(a);N_GUARD::R(E)+S(D)
- S(d);S_CUTR(a)::R(E)+S(D)
- S(d);S_CUTQ(c)::R(E)+S(D)
- P(h);OGATEB::QAB(A)
- Refutation
- S(d);
- Try
- R(B);
- Threat
- QAB1(A),XP(h)
- Vars
- R(a);N_GUARD::R(E)+S(D)
- S(d);S_CUTR(a)::R(E)+S(D)
- S(d);S_CUTR(b)::R(E)+S(D)
- P(h);OGATEB::QAB(A)
- Refutation
- S(d);
- Try
- Actual
- R(B);
- Threat
- QAB1(A),XP(h)
- Vars
- R(a);N_GUARD::R(B)
- S(d);S_CUTR(a)::R(B)
- S(d);S_CUTR(b)::R(E)+S(D)
- S(d);S_CUTQ(c)::R(E)+S(D)
- P(h);OGATEB::QAB(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).