MESON Chess Problem Database
Problem Display
PID: 104364 (5nB1/1q1R3b/8/2P1k1N1/2r1P1P1/p7/r1NB4/1Q3RK1 w - - 0 1)
Kovacevic, Marjan
1st Prize, Belgrade Internet Ty., 2007
#2
11 + 7
| 6490 | yacpdb | 2009 |
| 56 | The Problemist | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Qb8#
- 1...Qd5
- 2.Rxd5#
- 1...Qa6
- 2.Rd5#
- 1...Qc8
- 2.Rd5#
- 1...Qxb1
- 2.Rd5#
- 1...Qb2
- 2.Rd5#
- 1...Qb3
- 2.Rd5#
- 1...Qb4
- 2.Rd5#
- 1...Qb5
- 2.Rd5#
- 1...Qb6
- 2.Rd5#
- 1...Qa7
- 2.Rd5#
- 1...Qc7
- 2.Rd5#
- 1...Qb8
- 2.Rd5#
- 2.Qxb8#
- 1...Rc3
- 2.Bxc3#
- 1...Bf5
- 2.Rxf5#
- 1...Bxg8
- 2.Rf5#
- 1...Sg6
- 2.Rf5#
- 1...Qxe4
- Tries
- 1.Sf3+?
- 1...Kxe4
- 2.Qe1#
- 2.Qxb7#
- 1...Kf6!
- 1...Kxe4
- 1.Sf7+?
- 1...Kxe4
- 2.Rf4#
- 2.Qe1#
- 2.Qxb7#
- 1...Ke6!
- 1...Kxe4
- 1.Bc3+?
- 1...Rd4
- 2.Bxd4#
- 1...Rxc3!
- 1...Rd4
- 1.Bxh7?
- threat
- 2.Rf5#
- 1...Qxe4
- 2.Qb8#
- 1...Qxb1
- 2.Rd5#
- 1...Qxd7!
- threat
- 1.Rxf8?
- threat
- 2.Bf4#
- 1...Qxe4
- 2.Re7#
- 2.Qb8#
- 1...Rxe4
- 2.Sf3#
- 1...Bf5
- 2.Rxf5#
- 1...Qxb1+!
- threat
- 1.Rd6?
- threat
- 2.Bf4#
- 1...Qxe4
- 2.Sf7#
- 1...Rxe4
- 2.Sf3#
- 1...Se6
- 2.Rxe6#
- 1...Sg6
- 2.Rf5#
- 2.Re6#
- 1...Qf7!
- threat
- 1.Re7+?
- 1...Se6
- 2.Rxe6#
- 1...Qxe7!
- 1...Se6
- 1.Qb3?
- threat
- 2.Qg3#
- 1...Qxe4
- 2.Qb8#
- 1...Qxb3
- 2.Rd5#
- 1...Rxe4
- 2.Sf7#
- 1...Bf5
- 2.Rxf5#
- 1...Rc3
- 2.Bxc3#
- 2.Qxc3#
- 1...Sg6
- 2.Rf5#
- 1...Se6!
- threat
- 1.Qb6?
- threat
- 2.Bf4#
- 2.Qd6#
- 2.Qf6#
- 1...Qxe4
- 2.Sf7#
- 2.Qc7#
- 2.Qd6#
- 2.Qf6#
- 2.Qb8#
- 1...Qxb6
- 2.Rd5#
- 1...Qxd7
- 2.Bf4#
- 2.Qf6#
- 1...Rxe4
- 2.Sf3#
- 2.Sf7#
- 2.Qd6#
- 2.Qf6#
- 1...Sxd7
- 2.Bf4#
- 2.Qd6#
- 2.Qe6#
- 1...Se6
- 2.Qd6#
- 2.Qxe6#
- 1...Qd5
- 2.Bf4#
- 2.Rxd5#
- 2.Qf6#
- 1...Qa6
- 2.Bf4#
- 2.Rd5#
- 1...Qc7
- 2.Bf4#
- 2.Rd5#
- 2.Qxc7#
- 2.Qf6#
- 1...Qb8
- 2.Bf4#
- 2.Rd5#
- 2.Qf6#
- 2.Qxb8#
- 1...Rd4
- 2.Bf4#
- 2.Qf6#
- 1...Bf5
- 2.Bf4#
- 2.Rxf5#
- 2.Qd6#
- 1...Sg6
- 2.Rf5#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Qc6!
- threat
- 1.Sf3+?
- Keys
- 1.Qe1!
- threat
- 2.Qg3#
- 1...Qxe4
- 2.Rd5#
- 1...Rxe4
- 2.Bc3#
- 1...Bf5
- 2.Rxf5#
- 1...Qb3
- 2.Rd5#
- 1...Rc3
- 2.Bxc3#
- 1...Se6
- 2.Sf7#
- 1...Sg6
- 2.Rf5#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(e);OGATE,XP(F)::QAB(A)
- Q(e);N_GUARD::R1(J),XQ(e)
- Q(e);N_GUARD::R1(J)
- Q(e);N_GUARD,P_PINR(B),XQ(A)::R1(J)
- Q(e);N_GUARD,P_PINP(H)::R1(J)
- R(c);N_GUARD::B(E),XR(c)
- B(f);N_GUARD::R1(B),XB(f)
- B(f);N_GUARD,XB(K)::R1(B)
- S(g);S_CUTB(f)::R1(B)
- Tries
- Try
- S(I);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- S(I);CHECK
- Refutation
- K(d);P-FLIGHT
- Try
- B(E);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::B(E),XR(c)
- Refutation
- R(c);XB(E)
- Try
- B(K);XB(f)
- Threat
- R1(B)
- Vars
- Q(e);OGATE,XP(F)::QAB(A)
- Q(e);N_GUARD,P_PINR(B),XQ(A)::R1(J)
- Refutation
- Q(e);XR(J)
- Try
- R(B);XS(g)
- Threat
- B(E)
- Vars
- R(c);SBLOCK,XP(F)::S(I)
- B(f);N_GUARD::R1(B),XB(f)
- Refutation
- Q(e);CHECK,XQ(A)
- Try
- R(J);
- Threat
- B(E)
- Vars
- Q(e);N_GUARD,SBLOCK,XP(F)::S(I)
- R(c);SBLOCK,XP(F)::S(I)
- S(g);N_GUARD::R1(J),XS(g)
- Refutation
- Q(e);
- Try
- R(J);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::R1(J),XS(g)
- Refutation
- Q(e);XR(J)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- Q(e);OGATE,XP(F)::QAB(A)
- Q(e);N_GUARD,XQ(A)::R1(J)
- R(c);SBLOCK,XP(F)::S(I)
- B(f);N_GUARD::R1(B),XB(f)
- S(g);S_CUTB(f)::R1(B)
- Refutation
- S(g);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD,P_PINP(H),XQ(A)::R1(J)
- Refutation
- Q(e);
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XP(F)::R1(J)
- R(c);N_GUARD,P_SPINR(c),XP(F)::B(E)
- B(f);N_GUARD::R1(B),XB(f)
- Q(e);N_GUARD::R1(J)
- R(c);N_GUARD::B(E),XR(c)
- S(g);SBLOCK::S(I)
- S(g);S_CUTB(f)::R1(B)
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).