MESON Chess Problem Database
Problem Display
PID: 243437 (1N2K3/1pp2P2/1r1p4/P1k2b1R/P1P2R1p/1PBBpPpq/N1n5/Q7 w - - 0 1)
Bednar, Milan
Hlas l'udu, 1981
#2
14 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Sd7#
- 1...Sxa1
- 2.Bd4#
- 1...Se1
- 2.Bd4#
- 1...Sa3
- 2.Bd4#
- 1...Sb4
- 2.Bd4#
- 1...Sd4
- 2.Bxd4#
- 1...c6
- 2.Sd7#
- 1...Rc6
- Tries
- 1.Bb4+?
- 1...Sxb4
- 2.Qd4#
- 1...Rxb4!
- 1...Sxb4
- 1.Rd4?
- threat
- 2.Rd5#
- 1...Sxd4
- 2.Bxd4#
- 1...d5
- 2.Rxd5#
- 1...c6
- 2.Sd7#
- 1...Sb4!
- threat
- 1.Rfxf5+?
- 1...d5
- 2.Rxd5#
- 1...Qxf5!
- 1...d5
- 1.Rhxf5+?
- 1...d5
- 2.Rxd5#
- 1...Qxf5!
- 1...d5
- 1.b4+?
- 1...Sxb4
- 2.Bd4#
- 1...Rxb4!
- 1...Sxb4
- 1.f8S?
- threat
- 2.Se6#
- 2.Sfd7#
- 1...Sd4
- 2.Sfd7#
- 2.Bxd4#
- 1...d5!
- threat
- 1.Bb4+?
- Keys
- 1.Bd4+!
- 1...Sxd4
- 2.Qxd4#
- 1...Sxd4
- 1.Bd4+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(h);SBLOCK::S(M)
- S(a);N_GUARD,XQ(A)::B(D)
- S(a);N_GUARD::B(D)
- S(a);N_GUARD::B(D),XS(a)
- P(k);SBLOCK::S(M)
- Tries
- Try
- B(D);CHECK
- Vars
- S(a);XB(D)::QAB1(A)
- Refutation
- R(h);XB(D)
- Try
- R(I);
- Threat
- R1(I)
- Vars
- S(a);OGATE,XR(I)::B(D),XS(a)
- P(i);N_SPINB(g)::R1(I),XP(i)
- P(k);SBLOCK::S(M)
- Refutation
- S(a);
- Try
- R(I);CHECK,XB(g)
- Vars
- P(i);P_SPINP(i)::R1(I),XP(i)
- Refutation
- Q(d);P_SPINQ(d),XR(I)
- Try
- R(K);CHECK,XB(g)
- Vars
- P(i);P_SPINP(i)::R1(K),XP(i)
- Refutation
- Q(d);XR(K)
- Try
- P(C);CHECK
- Vars
- S(a);XP(C)::B(D)
- Refutation
- R(h);XP(C)
- Try
- P(L);
- Threat
- DUALS(2)
- Refutation
- P(i);N_SPINB(g)
- Try
- Actual
- B(D);CHECK
- Vars
- S(a);OGATE,XB(D)::QAB1(A),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).