MESON Chess Problem Database
Problem Display
PID: 165377 (4K2B/2P1p3/2rbk1p1/1Q6/2R4N/5b2/8/3R4 w - - 0 1)
Shavirin, Valery Mikhailovich
Rochade Europa, 1999
#2
7 + 6
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rxc4
- 2.Qd7#
- 1...Rc5
- 2.Qd7#
- 1...Ra6
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Rb6
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Be2
- 2.Qd5#
- 1...Bg4
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Bh5
- 2.Qd5#
- 1...Ba3
- 2.Qe5#
- 1...Bb4
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...g5
- 2.Qf5#
- 1...Rxc4
- Tries
- 1.Sxf3?
- threat
- 2.Sd4#
- 2.Sg5#
- 2.Qd5#
- 1...Rxc4
- 2.Sg5#
- 2.Qd7#
- 2.Qd5#
- 1...Bxc7
- 2.Sg5#
- 2.Qd5#
- 1...Rc5
- 2.Qd7#
- 1...Be5
- 2.Qxe5#
- 1...Bh2
- 2.Sg5#
- 2.Qd5#
- 1...Ba3
- 2.Sg5#
- 2.Re4#
- 2.Qd5#
- 2.Qe5#
- 1...Bg3
- 2.Sg5#
- 2.Qd5#
- 1...Bb4
- 2.Sg5#
- 2.Re4#
- 2.Qd5#
- 2.Qe5#
- 1...Bf4
- 2.Qd5#
- 1...g5
- 2.Sd4#
- 2.Sxg5#
- 2.Qd5#
- 1...Bc5!
- threat
- 1.Sxg6?
- threat
- 2.Sf8#
- 1...Rc5
- 2.Qd7#
- 1...Bd5
- 2.Qxd5#
- 1...Be5
- 2.Qxe5#
- 1...Bh5
- 2.Qd5#
- 1...Bc5!
- threat
- 1.Rxd6+?
- 1...Kxd6
- 2.Qe5#
- 1...Rxd6
- 2.Qe5#
- 1...exd6!
- 1...Kxd6
- 1.Re4+?
- 1...Be5
- 2.Rxe5#
- 2.Qxc6#
- 2.Qd5#
- 2.Qxe5#
- 1...Bxe4!
- 1...Be5
- 1.Rg4?
- threat
- 2.Rxg6#
- 1...Bxg4
- 2.Qd5#
- 1...Be5
- 2.Qxe5#
- 1...g5
- 2.Qf5#
- 1...Be4!
- threat
- 1.Rxc6?
- threat
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Bxd1
- 2.Qc4#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Be4
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Bh1
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Be2
- 2.Qxe2#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Bg2
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Bg4
- 2.Qc4#
- 2.Qb3#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...Bd5
- 2.Qxd5#
- 2.c8Q#
- 2.c8B#
- 1...Bh5
- 2.Qc4#
- 2.Qb3#
- 2.Qd5#
- 2.Qe5#
- 2.c8Q#
- 2.c8B#
- 1...g5
- 2.Qe5#
- 2.Qf5#
- 2.c8Q#
- 2.c8B#
- 1...Bxc6+!
- threat
- 1.Qxc6?
- threat
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bxd1
- 2.Re4#
- 2.c8Q#
- 2.c8B#
- 1...Be4
- 2.Rxe4#
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bh1
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Be2
- 2.Re4#
- 2.Qd5#
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bg2
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bg4
- 2.Re4#
- 2.Qd5#
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bd5
- 2.Qxd5#
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bh5
- 2.Re4#
- 2.Qd5#
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...g5
- 2.Qd7#
- 2.c8Q#
- 2.c8B#
- 1...Bxc6+!
- threat
- 1.Sxf3?
- Keys
- 1.Qb3!
- threat
- 2.Re4#
- 1...Rxc4
- 2.c8Q#
- 2.c8B#
- 1...Be4
- 2.Rxe4#
- 1...Bd5
- 2.Qh3#
- 1...Be5
- 2.Rxc6#
- threat
- 1.Qb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(b);OGATE,XR(B)::QAB1(D)
- R(b);OGATE::QAB1(D)
- B(a);N_GUARD::QAB1(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(c);N_GUARD::QAR1(D)
- B(c);N_GUARD::QAR1(D),XB(c)
- P(e);N_GUARD::QAB1(D)
- Tries
- Try
- S(C);XB(a)
- Threat
- DUALS(3)
- Vars
- R(b);OGATE::QAB1(D)
- B(c);N_GUARD::QAR1(D),XB(c)
- B(c);::QAB1(D)
- Refutation
- B(c);
- Try
- S(C);XP(e)
- Threat
- S(C)
- Vars
- R(b);OGATE::QAB1(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- B(c);N_GUARD::QAR1(D),XB(c)
- B(a);N_GUARD,P_PINS(C)::QAB1(D)
- Refutation
- B(c);
- Try
- R(A);CHECK,XB(c)
- Vars
- K(d);P-FLIGHT,XR(A)::QAB1(D)
- R(b);XR(A)::QAR1(D)
- Refutation
- P(f);XR(A)
- Try
- R(B);CHECK
- Refutation
- B(a);XR(B)
- Try
- R(B);
- Threat
- R(B),XP(e)
- Vars
- B(a);N_GUARD,XR(B)::QAB1(D)
- B(c);N_GUARD::QAR1(D),XB(c)
- P(e);N_GUARD::QAB1(D)
- Refutation
- B(a);
- Try
- R(B);P_PINB(c),XR(b)
- Threat
- DUALS(3)
- Refutation
- B(a);CHECK,N_SPINB(c),XR(B)
- Try
- Q(D);P_PINB(c),XR(b)
- Threat
- DUALS(3)
- Refutation
- B(a);CHECK,N_SPINB(c),XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAB(D)+R(B),DCHECK
- Vars
- R(b);N_GUARD,P_SPINR(b),XR(B)::P=Q
- B(a);::QAB(D)+R(B),DCHECK,XB(a)
- B(a);OGATE::QAB(D)
- B(c);::QAB(D)+R(B),DCHECK,XR(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).