MESON Chess Problem Database
Problem Display
PID: 79818 (1r2R3/n2Q1K2/2p5/4P1p1/nRBNkp2/1p3p2/2b1pP2/8 w - - 0 1)
Savournin, Jacques
2nd Prize, Europe Echecs, 1973
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...c5
- 2.Qd5#
- 1...c5
- Tries
- 1.Sxc2?
- threat
- 2.Bd3#
- 2.Bb5#
- 2.Qd3#
- 1...Rxb4
- 2.Bd3#
- 2.Qd3#
- 1...e1Q
- 2.Bd3#
- 2.Qd3#
- 1...e1S
- 2.Bd3#
- 2.Bb5#
- 1...e1B
- 2.Bd3#
- 2.Qd3#
- 1...Rb5
- 2.Bd3#
- 2.Bxb5#
- 2.Qd3#
- 1...Rb7
- 2.Bd3#
- 2.Bb5#
- 1...Rd8
- 2.Bxe2#
- 2.Bxb3#
- 2.Bd3#
- 2.Bb5#
- 2.Ba6#
- 1...Sb2
- 2.Bd3#
- 1...Sc5
- 2.Bd3#
- 2.Bb5#
- 1...Sb6
- 2.Bd3#
- 2.Qd3#
- 1...Sb5
- 2.Bd3#
- 2.Bxb5#
- 2.Qd3#
- 1...c5
- 2.Bd3#
- 2.Qd3#
- 1...Rxe8!
- threat
- 1.Sxb3?
- threat
- 2.Sd2#
- 2.Bd3#
- 2.Bb5#
- 1...Rxb4
- 2.Sd2#
- 1...Bxb3
- 2.Qd3#
- 1...e1Q
- 2.Bd3#
- 1...e1B
- 2.Bd3#
- 1...Rb5
- 2.Sd2#
- 2.Bd3#
- 2.Bxb5#
- 1...Bd3
- 2.Sd2#
- 2.Bxd3#
- 2.Bd5#
- 2.Qxd3#
- 1...Sb2
- 2.Sd2#
- 2.Sc5#
- 2.Bd3#
- 1...Sb6
- 2.Sd2#
- 2.Sc5#
- 2.Bd3#
- 1...Sb5
- 2.Sd2#
- 2.Bd3#
- 2.Bxb5#
- 1...c5
- 2.Sd2#
- 2.Bd3#
- 1...Rxe8!
- threat
- 1.Sxf3?
- threat
- 2.Sd2#
- 2.Sxg5#
- 1...Rxe8
- 2.Bxe2#
- 1...e1Q
- 2.Sxg5#
- 1...e1B
- 2.Sxg5#
- 1...g4
- 2.Sd2#
- 2.Sg5#
- 1...Kxf3!
- threat
- 1.Sb5?
- threat
- 2.Bxe2#
- 2.Bxb3#
- 2.Bd3#
- 1...Rxb5
- 2.Bd3#
- 2.Bxb5#
- 1...Sxb5
- 2.Bd3#
- 2.Bxb5#
- 1...e1Q
- 2.Bd3#
- 1...e1S
- 2.Bf1#
- 2.Be2#
- 2.Bxb3#
- 2.Bd3#
- 1...e1B
- 2.Bd3#
- 1...e1R
- 2.Bf1#
- 2.Be2#
- 2.Bxb3#
- 2.Bd3#
- 1...Bd3
- 2.Bxd3#
- 2.Bd5#
- 2.Qxd3#
- 1...Sb2
- 2.Sc3#
- 2.Bd3#
- 1...Sb6
- 2.Sc3#
- 2.Bd3#
- 1...b2
- 2.Ba2#
- 2.Bxe2#
- 2.Bb3#
- 2.Bd3#
- 1...c5
- 2.Bd3#
- 1...Rxe8!
- threat
- 1.Sxc6?
- threat
- 2.Bd3#
- 2.Bb5#
- 1...Sxc6
- 2.Bd3#
- 1...e1Q
- 2.Bd3#
- 1...e1B
- 2.Bd3#
- 1...Rb5
- 2.Bd3#
- 2.Bxb5#
- 1...Bd3
- 2.Bxd3#
- 2.Bd5#
- 2.Qxd3#
- 1...Sb2
- 2.Bd3#
- 1...Sb6
- 2.Bd3#
- 1...Sb5
- 2.Bd3#
- 2.Bxb5#
- 1...Rxb4!
- threat
- 1.Se6?
- threat
- 2.Sxg5#
- 1...Kxe5
- 2.Sd8#
- 1...Kf5
- 2.Sc5#
- 1...g4
- 2.Sg5#
- 1...Rxe8!
- threat
- 1.Bxb3?
- threat
- 2.Sb5#
- 2.Bxc2#
- 2.Qf5#
- 1...Kd3
- 2.Sb5#
- 1...Rxb4
- 2.Bxc2#
- 1...Rxe8
- 2.Sxc6#
- 2.Qf5#
- 1...e1Q
- 2.Bxc2#
- 2.Qf5#
- 1...e1S
- 2.Sb5#
- 2.Qf5#
- 1...e1B
- 2.Bxc2#
- 2.Qf5#
- 1...Rb5
- 2.Sxb5#
- 2.Bxc2#
- 2.Qf5#
- 1...Rb7
- 2.Sb5#
- 2.Bxc2#
- 1...Bb1
- 2.Sb5#
- 2.Qf5#
- 1...Bd1
- 2.Sb5#
- 2.Qf5#
- 1...Bd3
- 2.Qf5#
- 1...Sb2
- 2.Qf5#
- 1...Sc5
- 2.Sb5#
- 2.Qf5#
- 1...Sb6
- 2.Bxc2#
- 2.Qf5#
- 1...Sb5
- 2.Sxb5#
- 2.Bxc2#
- 2.Qf5#
- 1...c5
- 2.Bxc2#
- 2.Qf5#
- 1...Bxb3+!
- threat
- 1.Bd3+?
- 1...Kxd3
- 2.Sb5#
- 1...Bxd3!
- 1...Kxd3
- 1.Bd5+?
- 1...cxd5
- 2.Qf5#
- 1...Kd3!
- 1...cxd5
- 1.Qxc6+?
- 1...Kxd4
- 2.Bb5#
- 1...Sxc6!
- 1...Kxd4
- 1.Sxc2?
- Keys
- 1.Be6!
- threat
- 2.Bf5#
- 1...Kd3
- 2.Sb5#
- 1...Kxe5
- 2.Sxf3#
- 1...Rxe8
- 2.Sxc6#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(i);N_GUARD::QAB1(F)
- Tries
- Try
- S(D);XB(a)
- Threat
- DUALS(3)
- Vars
- S(e);::R(B)+B(C),DCHECK
- Refutation
- R(k);XR(H)
- Try
- S(D);XP(c)
- Threat
- DUALS(3)
- Vars
- R(k);XR(B)::S(D)
- B(a);N_GUARD,P_PINB(C),XS(D)::QAB1(F)
- P(b);::R(B)+B(C),DCHECK
- Refutation
- R(k);XR(H)
- Try
- S(D);XP(d)
- Threat
- DUALS(2)
- Vars
- R(k);N_GUARD,XR(H)::R(B)+B(C),XP(b)
- P(b);::S(D),XP(h)
- Refutation
- K(f);S_FLIGHT,XS(D)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- P(b);::R(B)+B(C),DCHECK
- P(i);::R(B)+B(C),DCHECK
- Refutation
- R(k);XR(H)
- Try
- S(D);XP(i)
- Threat
- DUALS(2)
- Vars
- S(j);XS(D)::R(B)+B(C),DCHECK
- P(b);::R(B)+B(C),DCHECK
- S(e);::R(B)+B(C),DCHECK
- Refutation
- R(k);XR(B)
- Try
- S(D);
- Threat
- S(D),XP(h)
- Vars
- K(f);P-FLIGHT,XP(E)::R(H)+S(D)
- K(f);S_FLIGHT::QAB(F)+S(D)
- P(h);::S(D)
- Refutation
- R(k);XR(H)
- Try
- B(C);XP(c)
- Threat
- DUALS(3)
- Vars
- K(f);S_FLIGHT::QAR(F)+S(D)
- R(k);XR(B)::B(C),XB(a)
- B(a);SBLOCK::QAB1(F)
- S(e);::QAB1(F)
- Refutation
- B(a);CHECK,XB(C)
- Try
- B(C);CHECK
- Vars
- K(f);S_FLIGHT,XB(C)::QAR(F)+S(D)
- Refutation
- B(a);XB(C)
- Try
- B(C);CHECK
- Vars
- P(i);SBLOCK,XB(C)::QAB1(F)
- Refutation
- K(f);S_FLIGHT
- Try
- Q(F);CHECK,XP(i)
- Vars
- K(f);P-FLIGHT,XS(D)::R(B)+B(C)
- Refutation
- S(j);XQ(F)
- Try
- Actual
- B(C);
- Threat
- B(C)
- Vars
- K(f);S_FLIGHT::QAR(F)+S(D)
- K(f);P-FLIGHT,XP(E)::S(D),XP(d)
- R(k);N_GUARD,XR(H)::R(B)+S(D),XP(i)
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).