MESON Chess Problem Database
Problem Display
PID: 23928 (2RN3n/1b4Bp/2N3kP/1R6/3p4/1Qb5/q3PP2/5B1K w - - 0 1)
Savournin, Jacques
Phenix, 1996
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qe6#
- 1...Qa1
- 2.Qe6#
- 1...Qb2
- 2.Qe6#
- 1...Qc2
- 2.Qe6#
- 1...Qd2
- 2.Qe6#
- 1...Qa3
- 2.Qe6#
- 1...Qa4
- 2.Qe6#
- 1...Qa5
- 2.Qe6#
- 1...Qa6
- 2.Qe6#
- 1...Qa7
- 2.Qe6#
- 1...Qa8
- 2.Qe6#
- 1...Ba1
- 2.Qd3#
- 2.Qg3#
- 1...Be1
- 2.Qd3#
- 2.Qg3#
- 1...Bb2
- 2.Qd3#
- 2.Qg3#
- 1...Bd2
- 2.Qd3#
- 1...Bb4
- 2.Qd3#
- 2.Qg3#
- 1...Ba5
- 2.Qd3#
- 2.Qg3#
- 1...Ba6
- 2.Se7#
- 1...Bxc6+
- 2.Rxc6#
- 1...Bxc8
- 2.Se7#
- 1...Qb1
- Tries
- 1.Kg1?
- threat
- 2.Se7#
- 1...Bxc6
- 2.Rxc6#
- 1...Qa3
- 2.Qe6#
- 1...Bb4
- 2.Qd3#
- 2.Qg3#
- 1...Qxe2!
- threat
- 1.Kh2?
- threat
- 2.Se7#
- 1...Bxc6
- 2.Rxc6#
- 1...Qa3
- 2.Qe6#
- 1...Bb4
- 2.Qd3#
- 2.Qg3#
- 1...Qxe2!
- threat
- 1.Sf7?
- threat
- 2.Sxh8#
- 2.Rg5#
- 1...Bxc6+
- 2.Rxc6#
- 1...Qxb3
- 2.Sxh8#
- 1...Qd2
- 2.Sxh8#
- 2.Qe6#
- 1...Qa5
- 2.Sxh8#
- 2.Qe6#
- 1...Bd2
- 2.Sxh8#
- 1...Sxf7!
- threat
- 1.Qxa2?
- threat
- 2.Qe6#
- 1...Bxc6+
- 2.Rxc6#
- 1...Bxc8
- 2.Se7#
- 1...d3!
- threat
- 1.Qc2+?
- 1...d3
- 2.Qxd3#
- 1...Qxc2!
- 1...d3
- 1.Qd5?
- threat
- 2.Se7#
- 2.Qg2#
- 2.Qe4#
- 2.Qf5#
- 2.Qg5#
- 2.Qh5#
- 1...Qxe2
- 2.Qf5#
- 2.Qg5#
- 1...Bxc6
- 2.Rxc6#
- 1...Bxc8
- 2.Se7#
- 2.Qg5#
- 2.Qh5#
- 1...Qb1
- 2.Se7#
- 2.Qg2#
- 2.Qe6#
- 2.Qg5#
- 2.Qh5#
- 2.Qd6#
- 1...Qc2
- 2.Se7#
- 2.Qg2#
- 2.Qe6#
- 2.Qg5#
- 2.Qh5#
- 2.Qd6#
- 1...Qd2
- 2.Se7#
- 2.Qe4#
- 2.Qe6#
- 2.Qf5#
- 2.Qh5#
- 2.Qd6#
- 1...Qa3
- 2.Qg2#
- 2.Qe4#
- 2.Qe6#
- 2.Qf5#
- 2.Qg5#
- 2.Qh5#
- 1...Bd2
- 2.Se7#
- 2.Qe4#
- 2.Qf5#
- 2.Qh5#
- 1...Bb4
- 2.Qg2#
- 2.Qe4#
- 2.Qf5#
- 2.Qg5#
- 2.Qh5#
- 1...Sf7
- 2.Se7#
- 2.Qe4#
- 2.Qf5#
- 2.Qh5#
- 1...Qxd5+!
- threat
- 1.e3?
- threat
- 2.Bd3#
- 1...Bxc6+
- 2.Rxc6#
- 1...Bxc8
- 2.Se7#
- 1...Qb1
- 2.Qe6#
- 1...Qa1
- 2.Qe6#
- 1...Qc2
- 2.Qe6#
- 1...Qd2
- 2.Qe6#
- 1...Qe2
- 2.Qe6#
- 1...d3
- 2.Bxd3#
- 1...Qxf2!
- threat
- 1.f3?
- threat
- 2.Se7#
- 1...Bxc6
- 2.Rxc6#
- 1...Qa3
- 2.Qe6#
- 1...Bb4
- 2.Qd3#
- 1...Qxe2!
- threat
- 1.f4?
- threat
- 2.Rg5#
- 1...Bxc6+
- 2.Rxc6#
- 1...Qa5
- 2.Qe6#
- 1...Sf7!
- threat
- 1.Kg1?
- Keys
- 1.e4!
- threat
- 2.Se7#
- 1...Bxc6
- 2.Rxc6#
- 1...dxe4 ep
- 2.Bd3#
- 1...Qa3
- 2.Qe6#
- 1...Bb4
- 2.Qg3#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 13
- Sets
- Q(a);N_GUARD,P_PINB(A)::QAR2(E)
- Q(a);N_GUARD::QAR2(E)
- B(b);OGATE::QAB(E)
- B(e);N_PINS(G)::S(G)
- B(e);CHECK,OGATE,XS(G)::R(J),XB(e)
- B(e);N_PINS(G),XR(J)::S(G)
- Tries
- Try
- K(B);N_SPINS(G),P-FLIGHT
- Threat
- S(G)
- Vars
- B(e);OGATE,XS(G)::R(J),XB(e)
- Q(a);N_GUARD::QAR2(E)
- Refutation
- Q(a);XP(C)
- Try
- K(B);N_SPINS(G),P-FLIGHT
- Threat
- S(G)
- Vars
- B(e);OGATE,XS(G)::R(J),XB(e)
- Q(a);N_GUARD::QAR2(E)
- Refutation
- Q(a);P_PINP(D),XP(C)
- Try
- S(K);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK,OGATE,XS(G)::R(J),XB(e)
- Q(a);XQ(E)::S(K),XS(g)
- B(b);::S(K),XS(g)
- Refutation
- S(g);XS(K)
- Try
- Q(E);XQ(a)
- Threat
- QAR2(E)
- Vars
- B(e);CHECK,OGATE,XS(G)::R(J),XB(e)
- B(e);N_PINS(G),XR(J)::S(G)
- Refutation
- P(c);
- Try
- Q(E);CHECK
- Vars
- P(c);P_SPINP(c)::QAB(E),XP(c)
- Refutation
- Q(a);XQ(E)
- Try
- Q(E);N_SPINS(G)
- Threat
- DUALS(6)
- Vars
- B(e);OGATE,P_PINQ(E),XS(G)::R(J),XB(e)
- Refutation
- Q(a);CHECK,XQ(E)
- Try
- P(C);
- Threat
- B(A)
- Vars
- B(e);CHECK,OGATE,XS(G)::R(J),XB(e)
- B(e);N_PINS(G),XR(J)::S(G)
- Q(a);N_GUARD,P_PINB(A)::QAR2(E)
- Q(a);N_GUARD::QAR2(E)
- P(c);::B(A),XP(c)
- Refutation
- Q(a);XP(D)
- Try
- P(D);N_SPINS(G)
- Threat
- S(G)
- Vars
- B(e);OGATE,P_PINP(D),XS(G)::R(J),XB(e)
- Q(a);N_GUARD::QAR2(E)
- B(b);OGATE::QAB(E)
- Refutation
- Q(a);XP(C)
- Try
- P(D);
- Threat
- R1(F)
- Vars
- B(e);CHECK,OGATE,XS(G)::R(J),XB(e)
- Q(a);N_GUARD::QAR2(E)
- Refutation
- S(g);
- Try
- Actual
- P(C);N_SPINS(G)
- Threat
- S(G)
- Vars
- B(e);OGATE,P_PINP(C),XS(G)::R(J),XB(e)
- P(c);EP,OGATEB,P_PINS(G),XP(C)::B(A)
- Q(a);N_GUARD::QAR2(E)
- B(b);OGATE::QAR(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).