MESON Chess Problem Database
Problem Display
PID: 79821 (7q/1r1ppQ2/2R2N1p/4kP2/r7/2PB1K2/b2B4/8 w - - 0 1)
Savournin, Jacques
2nd HM., Europe Echecs, 1979
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Sg4#
- 2.Bf4#
- 1...Rc4
- 2.Qd5#
- 2.Qxe7#
- 1...Rf4+
- 2.Bxf4#
- 1...Rg4
- 2.Sxg4#
- 1...Ra5
- 2.Sg4#
- 2.Bf4#
- 1...Ra6
- 2.Sg4#
- 2.Bf4#
- 1...Raa7
- 2.Sg4#
- 2.Bf4#
- 1...Ra8
- 2.Sg4#
- 2.Bf4#
- 1...Rb1
- 2.Sxd7#
- 1...Rb2
- 2.Sxd7#
- 1...Rb3
- 2.Sxd7#
- 2.Qd5#
- 2.Qxe7#
- 1...Rb4
- 2.Sxd7#
- 1...Rb5
- 2.Sxd7#
- 1...Rb6
- 2.Sxd7#
- 1...Rb8
- 2.Sxd7#
- 1...Bb1
- 2.Qd5#
- 2.Qxe7#
- 1...Bc4
- 2.Sg4#
- 2.Bf4#
- 1...Bd5+
- 2.Qxd5#
- 1...d5
- 2.Re6#
- 2.Qe6#
- 1...Ra3
- Tries
- 1.Bc4?
- threat
- 2.Sg4#
- 2.Qd5#
- 1...Kxf5
- 2.Qh5#
- 1...Qxf6
- 2.Qd5#
- 1...Rxc4
- 2.Qd5#
- 1...Bxc4
- 2.Sg4#
- 1...dxc6
- 2.Qe6#
- 1...exf6
- 2.Qd5#
- 1...Qg7
- 2.Qd5#
- 1...Ra5
- 2.Sg4#
- 1...Rb5
- 2.Sg4#
- 2.Sxd7#
- 1...h5
- 2.Qd5#
- 1...d5
- 2.Sg4#
- 2.Qxd5#
- 2.Qe6#
- 1...d6
- 2.Sg4#
- 2.Qe6#
- 1...e6
- 2.Sg4#
- 1...Qg8!
- threat
- 1.Be4?
- threat
- 2.Sg4#
- 2.Bf4#
- 1...Qxf6
- 2.Bf4#
- 1...dxc6
- 2.Bf4#
- 1...exf6
- 2.Bf4#
- 1...Qg7
- 2.Bf4#
- 1...Qg8
- 2.Bf4#
- 1...h5
- 2.Bf4#
- 1...Rxe4!
- threat
- 1.Rc5+?
- 1...Bd5+
- 2.Rxd5#
- 1...d5
- 2.Qe6#
- 1...Kd6!
- 1...Bd5+
- 1.c4?
- threat
- 2.Bc3#
- 2.Qd5#
- 1...Kd4
- 2.Qd5#
- 1...Rxc4
- 2.Qd5#
- 1...Bxc4
- 2.Bc3#
- 1...Qg8
- 2.Bc3#
- 1...Ra3
- 2.Qd5#
- 1...Ra5
- 2.Bc3#
- 1...Rb3
- 2.Qd5#
- 1...Rb5
- 2.Bc3#
- 1...d5
- 2.Qxd5#
- 1...d6
- 2.Bc3#
- 1...e6
- 2.Bc3#
- 1...dxc6!
- threat
- 1.Bc4?
- Keys
- 1.Rc4!
- threat
- 2.Bf4#
- 2.Qxe7#
- 1...Kd6
- 2.Qd5#
- 1...Qxf6
- 2.Bf4#
- 1...Rxc4
- 2.Qxe7#
- 1...Bxc4
- 2.Bf4#
- 1...exf6
- 2.Bf4#
- 1...Qg7
- 2.Bf4#
- 1...Qh7
- 2.Bf4#
- 1...Qd8
- 2.Bf4#
- 1...Qe8
- 2.Bf4#
- 1...Qf8
- 2.Bf4#
- 1...Qg8
- 2.Bf4#
- 1...Ra6
- 2.Bf4#
- 1...Rb6
- 2.Bf4#
- 1...d5
- 2.Bf4#
- 2.Qe6#
- 1...d6
- 2.Sg4#
- 2.Bf4#
- 2.Qe6#
- 1...e6
- 2.Bf4#
- threat
- 1.Rc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 13
- REMOVED MATES = 8
- Sets
- R(b);CHECK,N_GUARD::B(A),XR(b)
- R(b);N_GUARD::S(G),XR(b)
- R(e);N_GUARD::S(G),XP(f)
- B(a);CHECK,N_GUARD::QAR1(H),XB(a)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- K(c);OGATEB,P-FLIGHT,XP(E)::QAR2(H)
- Q(h);P_PINP(E),XS(G)::QAR1(H)
- R(b);XB(C)::QAR1(H)
- B(a);XB(C)::S(G)
- P(f);N_GUARD,XR(F)::QAR1(H)
- P(g);XS(G)::QAR1(H)
- Q(h);::QAR1(H)
- R(b);::S(G)
- P(d);::QAR1(H)
- P(g);::S(G)
- Refutation
- Q(h);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(h);P_PINP(E),XS(G)::B(A)
- P(f);XR(F)::B(A)
- P(g);XS(G)::B(A)
- Q(h);::B(A)
- P(d);::B(A)
- Refutation
- R(b);XB(C)
- Try
- R(F);CHECK
- Vars
- B(a);CHECK,N_GUARD,P_SPINB(a)::R1(F),XB(a)
- P(f);P_SPINP(f)::QAR1(H)
- Refutation
- K(c);S_FLIGHT
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT::QAR1(H)
- R(b);XP(B)::QAR1(H)
- B(a);XP(B)::B(A)
- Q(h);::B(A)
- R(b);P_PINB(C)::QAR1(H)
- R(b);::B(A)
- R(e);P_PINB(C)::QAR1(H)
- R(e);::B(A)
- P(f);::QAR1(H),XP(f)
- P(f);::B(A)
- P(g);::B(A)
- Refutation
- P(f);XR(F)
- Try
- Actual
- R(F);
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT::QAR1(H)
- Q(h);P_PINP(E),XS(G)::B(A)
- R(b);XR(F)::QAR2(H),XP(g)
- B(a);XR(F)::B(A)
- P(g);XS(G)::B(A)
- Q(h);::B(A)
- R(b);::B(A)
- R(e);::B(A)
- P(g);::B(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).