MESON Chess Problem Database
Problem Display
PID: 238768 (n1bN4/r2p1PK1/2P2P2/2B1kBp1/7R/5QP1/1n1Nr3/8 w - - 0 1)
Janevski, Zivko
Mat, 1979
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Qe4#
- 1...Rf2
- 2.Qe4#
- 1...Rg2
- 2.Qe4#
- 1...Rh2
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Sd1
- 2.Sc4#
- 1...Sd3
- 2.Sc4#
- 1...Sa4
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...dxc6
- 2.Sxc6#
- 1...d6
- 2.Bd4#
- 1...Rxd2
- Tries
- 1.Bb1?
- threat
- 2.Qf5#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qe4#
- 1...Sd3
- 2.Sc4#
- 1...d5
- 2.Qxe2#
- 1...d6
- 2.Bd4#
- 1...dxc6!
- threat
- 1.Bc2?
- threat
- 2.Qf5#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qe4#
- 1...Sd3
- 2.Sc4#
- 1...d5
- 2.Qxe2#
- 1...d6
- 2.Bd4#
- 1...dxc6!
- threat
- 1.Bd3?
- threat
- 2.Qf5#
- 1...Sxd3
- 2.Sc4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Qe4#
- 1...d5
- 2.Qxe2#
- 1...d6
- 2.Bd4#
- 1...dxc6!
- threat
- 1.Be4?
- threat
- 2.Qc3#
- 2.Qf5#
- 1...Rxd2
- 2.Qf5#
- 1...Rxe4
- 2.Qxe4#
- 1...dxc6
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Re3
- 2.Qf5#
- 1...Ra3
- 2.Qf5#
- 1...Ra4
- 2.Qf5#
- 1...Sd1
- 2.Sc4#
- 2.Qf5#
- 1...Sd3
- 2.Sc4#
- 2.Qf5#
- 1...Sa4
- 2.Sc4#
- 2.Qf5#
- 1...d6
- 2.Qc3#
- 1...d5!
- threat
- 1.Bg4?
- threat
- 2.Qf5#
- 1...dxc6
- 2.Sxc6#
- 1...Rf2
- 2.Qe4#
- 1...d5
- 2.Qxe2#
- 1...d6!
- threat
- 1.Be6?
- threat
- 2.Qxe2#
- 2.Qd5#
- 2.Qc3#
- 2.Qf5#
- 1...Rxd2
- 2.Re4#
- 2.Qe4#
- 2.Qe3#
- 2.Qf5#
- 1...dxc6
- 2.Qxe2#
- 2.Qc3#
- 2.Qf5#
- 1...Re1
- 2.Qd5#
- 2.Qc3#
- 2.Qf5#
- 1...Rf2
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 2.Qe3#
- 1...Rg2
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 2.Qe3#
- 2.Qf5#
- 1...Rh2
- 2.Re4#
- 2.Qe4#
- 2.Qd5#
- 2.Qc3#
- 2.Qe3#
- 2.Qf5#
- 1...Re3
- 2.Qd5#
- 2.Qxe3#
- 2.Qf5#
- 1...Re4
- 2.Rxe4#
- 2.Qxe4#
- 2.Qf5#
- 1...Ra3
- 2.Qd5#
- 2.Qf5#
- 1...Ra4
- 2.Qd5#
- 2.Qf5#
- 1...Ba6
- 2.Qd5#
- 2.Qc3#
- 2.Qf5#
- 1...Sd1
- 2.Sc4#
- 2.Qd5#
- 2.Qf5#
- 1...Sd3
- 2.Sc4#
- 2.Qxe2#
- 2.Qd5#
- 2.Qf5#
- 1...Sa4
- 2.Sc4#
- 2.Qxe2#
- 2.Qd5#
- 2.Qf5#
- 1...Sc4
- 2.Sxc4#
- 2.Qd5#
- 2.Qc3#
- 2.Qf5#
- 1...Sb6
- 2.Qxe2#
- 2.Qc3#
- 2.Qf5#
- 1...Sc7
- 2.Qxe2#
- 2.Qc3#
- 2.Qf5#
- 1...d5
- 2.Qxe2#
- 2.Qxd5#
- 2.Qf5#
- 1...dxe6!
- threat
- 1.Bg6?
- threat
- 2.Qf5#
- 1...Rf2
- 2.Qe4#
- 1...d5
- 2.Qxe2#
- 1...d6
- 2.Bd4#
- 1...dxc6!
- threat
- 1.Bh7?
- threat
- 2.Qf5#
- 1...Rf2
- 2.Qe4#
- 1...d5
- 2.Qxe2#
- 1...d6
- 2.Bd4#
- 1...dxc6!
- threat
- 1.Re4+?
- 1...Rxe4
- 2.Qxe4#
- 1...Kd5!
- 1...Rxe4
- 1.Qxe2+?
- 1...Kxf5
- 2.Qe4#
- 1...Kd5!
- 1...Kxf5
- 1.Qc3+?
- 1...Kd5
- 2.Qd4#
- 1...Kxf5!
- 1...Kd5
- 1.Qd3?
- threat
- 2.Sf3#
- 2.Bd6#
- 1...Rxd2
- 2.Bd6#
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rf2
- 2.Bd6#
- 2.Qe4#
- 1...Re3
- 2.Bd6#
- 1...Sc4
- 2.Sf3#
- 2.Sxc4#
- 1...g4
- 2.Bd6#
- 1...d5
- 2.Sf3#
- 1...d6
- 2.Sf3#
- 2.Bxd6#
- 1...Sxd3!
- threat
- 1.Qe3+?
- 1...Kd5
- 2.Qd4#
- 1...Kxf5
- 2.g4#
- 1...Rxe3!
- 1...Kd5
- 1.Qf4+?
- 1...Kd5
- 2.Qd6#
- 2.Qd4#
- 1...gxf4!
- 1...Kd5
- 1.Bb1?
- Keys
- 1.Bh3!
- threat
- 2.Qf5#
- 1...dxc6
- 2.Sxc6#
- 1...Rf2
- 2.Qe4#
- 1...g4
- 2.Rh5#
- 1...d5
- 2.Qxe2#
- 1...d6
- 2.Bd4#
- threat
- 1.Bh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD,XS(A)::QAR1(B)
- R(b);N_GUARD::QAR1(B)
- R(b);N_GUARD::QAR1(B),XR(b)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);P_PINP(I),XP(G)::S(K),XP(f)
- P(f);P_PINP(I),SBLOCK::B(E)
- Tries
- Try
- B(F);
- Threat
- QAR1(B)
- Vars
- R(b);N_GUARD::QAR1(B),XR(b)
- R(b);N_GUARD::QAR1(B)
- S(a);N_GUARD::S(A)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- P(f);P_PINP(I),SBLOCK::B(E)
- Refutation
- P(f);P_PINP(I),XP(G)
- Try
- B(F);
- Threat
- QAR1(B)
- Vars
- R(b);N_GUARD::QAR1(B),XR(b)
- R(b);N_GUARD::QAR1(B)
- S(a);N_GUARD::S(A)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- P(f);P_PINP(I),SBLOCK::B(E)
- Refutation
- P(f);P_PINP(I),XP(G)
- Try
- B(F);
- Threat
- QAR1(B)
- Vars
- S(a);N_GUARD,XB(F)::S(A)
- R(b);N_GUARD::QAR1(B),XR(b)
- R(b);N_GUARD::QAR1(B)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- P(f);P_PINP(I),SBLOCK::B(E)
- Refutation
- P(f);P_PINP(I),XP(G)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(b);XS(A)::QAR1(B)
- R(b);OGATE,XB(F)::QAR1(B),XR(b)
- P(f);P_PINP(I),XP(G)::QAB(B)
- R(b);::QAB(B)
- R(b);::QAR1(B)
- R(e);::QAR1(B)
- P(f);P_PINP(I)::QAB(B)
- Refutation
- P(f);P_PINP(I)
- Try
- B(F);
- Threat
- QAR1(B)
- Vars
- P(f);P_PINP(I),XP(G)::S(K),XP(f)
- R(b);N_GUARD::QAR1(B)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- Refutation
- P(f);P_PINP(I)
- Try
- B(F);
- Threat
- DUALS(4)
- Refutation
- P(f);P_PINP(I),XB(F)
- Try
- B(F);
- Threat
- QAR1(B)
- Vars
- R(b);N_GUARD::QAR1(B)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- P(f);P_PINP(I),SBLOCK::B(E)
- Refutation
- P(f);P_PINP(I),XP(G)
- Try
- B(F);
- Threat
- QAR1(B)
- Vars
- R(b);N_GUARD::QAR1(B)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- P(f);P_PINP(I),SBLOCK::B(E)
- Refutation
- P(f);P_PINP(I),XP(G)
- Try
- R(D);CHECK
- Vars
- R(b);OGATE,XR(D)::QAR1(B),XR(b)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(B);CHECK,XR(b)
- Vars
- K(c);P-FLIGHT,XB(F)::QAB1(B)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(B);CHECK
- Vars
- K(c);P-FLIGHT::QAR1(B)
- Refutation
- K(c);P-FLIGHT,XB(F)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::QAR1(B),XR(b)
- R(b);::B(E)
- P(d);::B(E)
- P(f);P_PINP(I)::S(A)
- Refutation
- S(a);XQ(B)
- Try
- Q(B);CHECK
- Vars
- K(c);P-FLIGHT::QAR1(B)
- K(c);P-FLIGHT,XB(F)::P(C)
- Refutation
- R(b);XQ(B)
- Try
- Q(B);CHECK
- Refutation
- P(d);XQ(B)
- Try
- Actual
- B(F);
- Threat
- QAR1(B)
- Vars
- P(f);P_PINP(I),XP(G)::S(K),XP(f)
- R(b);N_GUARD::QAR1(B)
- P(d);OGATEB::R(D)
- P(f);P_PINP(I),SBLOCK::QAR(B),XR(b)
- P(f);P_PINP(I),SBLOCK::B(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).