MESON Chess Problem Database
Problem Display
PID: 161424 (7b/pB5P/1B1p2KQ/2P3p1/RNrk4/1p2R1n1/3Pp2n/3br1N1 w - - 0 1)
Bunka, Vladislav
Comm., Mariani-50 JT, 2011
#2
11 + 12
| 4901 | Best Problems | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rc3
- 2.Sc2#
- 1...Rxb4
- 2.Rxb4#
- 1...Rxc5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 1...Be5
- 2.Rd3#
- 1...Bg7
- 2.Qxg7#
- 1...Shf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sg4
- 2.Sf3#
- 1...Sgf1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sf5
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 1...d5
- 2.Sc6#
- 1...Rc1
- Tries
- 1.Kf7?
- threat
- 2.Qxd6#
- 1...Rxb4
- 2.Rxb4#
- 1...Rxc5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 1...dxc5
- 2.Qd6#
- 1...Rc1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rc3
- 2.Sc2#
- 1...Se4
- 2.Rxe4#
- 1...Be5
- 2.Rd3#
- 1...Bf6
- 2.Qxf6#
- 1...Sf5
- 2.Re4#
- 1...d5
- 2.Sc6#
- 1...Rf1+!
- threat
- 1.Qxg5?
- threat
- 2.Sc6#
- 2.Rd3#
- 2.Qd5#
- 1...Rxb4
- 2.Rxb4#
- 2.Qd5#
- 1...Rxc5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 2.Sc6#
- 2.Qd5#
- 1...Rc1
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Rc2
- 2.Sxc2#
- 2.Sc6#
- 2.Qd5#
- 1...Rc3
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Be5
- 2.Rd3#
- 1...Sf5
- 2.Re4#
- 2.Qf4#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...Bc2+!
- threat
- 1.Qf8?
- threat
- 2.Qxd6#
- 2.Qxh8#
- 1...Rxb4
- 2.Rxb4#
- 1...Rxc5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 1...dxc5
- 2.Qd6#
- 2.Qd8#
- 2.Qxh8#
- 1...axb6
- 2.Qxd6#
- 1...Rc1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rc3
- 2.Sc2#
- 1...Se4
- 2.Rxe4#
- 1...Rf1
- 2.Qxd6#
- 1...Be5
- 2.Rd3#
- 1...Bf6
- 2.Qxd6#
- 2.Qxf6#
- 1...Bg7
- 2.Qxd6#
- 2.Qxg7#
- 1...Sf3
- 2.Sxf3#
- 2.Qxd6#
- 1...Sg4
- 2.Sf3#
- 2.Qxd6#
- 1...Sf5
- 2.Re4#
- 1...Sh5
- 2.Re4#
- 2.Qxd6#
- 1...d5
- 2.Sc6#
- 2.Qxh8#
- 1...Bc2+!
- threat
- 1.cxd6+?
- 1...Rc5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sd5#
- 2.Sa6#
- 1...axb6!
- 1...Rc5
- 1.Kf7?
- Keys
- 1.Kxg5!
- threat
- 2.Qxd6#
- 1...Rxc5+
- 2.Sd5#
- 1...Bf6+
- 2.Qxf6#
- 1...Sf3+
- 2.Sxf3#
- 1...Se4+
- 2.Rxe4#
- 1...Rxb4
- 2.Rxb4#
- 1...dxc5
- 2.Qd6#
- 1...Rc1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rc3
- 2.Sc2#
- 1...Be5
- 2.Rd3#
- 1...Sf5
- 2.Re4#
- 1...d5
- 2.Sc6#
- threat
- 1.Kxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(g);::R(D)+S(E),DCHECK
- R(g);::R(D)+S(E),DCHECK,XR(g)
- R(g);OGATE,P_SPINR(g),XS(E)::R(D),XR(g)
- B(l);SBLOCK::R1(C)
- B(l);N_GUARD::QAB(I),XB(l)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- S(f);N_GUARD::R1(C)
- S(f);N_GUARD::R1(C),XS(f)
- P(j);SBLOCK::S(E)
- Tries
- Try
- K(H);S_FLIGHT
- Threat
- QAR2(I),XP(j)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(D),XR(g)
- P(j);P_SPINP(j),XP(F)::QAR2(I)
- R(g);::R(D)+S(E),DCHECK
- R(g);::R(D)+S(E),DCHECK,XR(g)
- S(f);N_GUARD::R1(C),XS(f)
- B(l);SBLOCK::R1(C)
- B(l);N_GUARD::QAB(I),XB(l)
- S(f);N_GUARD::R1(C)
- P(j);SBLOCK::S(E)
- Refutation
- R(b);CHECK
- Try
- Q(I);XP(i)
- Threat
- DUALS(3)
- Vars
- B(l);::R1(C)
- Refutation
- B(a);CHECK
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(g);OGATE,P_SPINR(g),XS(E)::R(D),XR(g)
- P(k);XB(G)::QAR2(I),XP(j)
- R(g);::R(D)+S(E),DCHECK
- R(g);::R(D)+S(E),DCHECK,XR(g)
- S(f);N_GUARD::R1(C),XS(f)
- R(b);::QAR2(I),XP(j)
- B(l);SBLOCK::R1(C)
- S(f);N_GUARD::R1(C)
- Refutation
- B(a);CHECK
- Try
- P(F);CHECK,XP(j)
- Refutation
- P(k);XB(G)
- Try
- Actual
- K(H);P-FLIGHT,XP(i)
- Threat
- QAR2(I),XP(j)
- Vars
- R(g);CHECK,P_SPINR(g),XP(F)::R(D)+S(E)
- B(l);CHECK,N_GUARD::QAB(I),XB(l)
- S(d);CHECK,N_GUARD::S(A),XS(d)
- S(f);CHECK,N_GUARD::R1(C),XS(f)
- R(g);OGATE,P_SPINR(g),XS(E)::R(D),XR(g)
- P(j);P_SPINP(j),XP(F)::QAR2(I)
- R(g);::R(D)+S(E),DCHECK
- R(g);::R(D)+S(E),DCHECK,XR(g)
- B(l);SBLOCK::R1(C)
- S(f);N_GUARD::R1(C)
- P(j);SBLOCK::S(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).