MESON Chess Problem Database
Problem Display
PID: 56813 (6Q1/1b6/1K1p2rB/1B5P/1RN1k3/2P2R2/1p4P1/1q1Nbn2 w - - 0 1)
Renaud, Georges
L'Echiquier, 1925
#2
11 + 8
| 797 | Bulletin de la FFE | 1925 |
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 1953 |
SOLUTION
- SOUND
- Sets
- 1...Qd3
- 2.Rf4#
- 1...Rg3
- 2.Qe6#
- 1...Rg4
- 2.Qe6#
- 1...Re6
- 2.Qxe6#
- 1...Rg7
- 2.Qe6#
- 1...Bd2
- 2.Sf2#
- 1...Bf2+
- 2.Sxf2#
- 1...Bd5
- 2.Qxg6#
- 1...d5+
- 2.Qxg6#
- 1...Qd3
- Tries
- 1.Bc6+?
- 1...d5
- 2.Qxd5#
- 2.Qxg6#
- 1...Bxc6!
- 1...d5
- 1.Bf4?
- threat
- 2.Sce3#
- 2.Sxd6#
- 1...Bf2+
- 2.Sce3#
- 1...d5+
- 2.Sd6#
- 2.Qxg6#
- 1...Kf5
- 2.Qxg6#
- 1...Qxd1
- 2.Sxd6#
- 1...Rxg8
- 2.Sce3#
- 1...Bxc3
- 2.Sxd6#
- 1...Re6
- 2.Sce3#
- 2.Qxe6#
- 1...Se3
- 2.Scxe3#
- 2.Sxd6#
- 1...Qa2
- 2.Sxd6#
- 1...Qd3
- 2.Sxd6#
- 1...Bd5
- 2.Sxd6#
- 2.Qxg6#
- 1...Sd2
- 2.Sxd6#
- 1...Rxg2!
- threat
- 1.Bg7?
- threat
- 2.Scxb2#
- 2.Sd2#
- 2.Sa3#
- 2.Sce3#
- 2.Sa5#
- 2.Se5#
- 2.Sxd6#
- 1...Bf2+
- 2.Sxf2#
- 2.Sce3#
- 1...d5+
- 2.Sd6#
- 1...Qxd1
- 2.Sd2#
- 2.Sxd6#
- 1...Rxg2
- 2.Sd2#
- 2.Se5#
- 1...Rxg7
- 2.Qe6#
- 1...Bxc3
- 2.Sf2#
- 2.Sxc3#
- 2.Sd2#
- 2.Sxd6#
- 1...Re6
- 2.Sce3#
- 2.Qxe6#
- 1...Se3
- 2.Sd2#
- 2.Scxe3#
- 2.Sxd6#
- 1...Qa2
- 2.Sd2#
- 2.Sxd6#
- 1...Qd3
- 2.Sd2#
- 2.Sxd6#
- 1...Bd2
- 2.Sf2#
- 2.Scxb2#
- 2.Sxd2#
- 2.Sa3#
- 2.Sce3#
- 2.Sa5#
- 2.Se5#
- 2.Sxd6#
- 1...Bd5
- 2.Sd2#
- 2.Sxd6#
- 1...Sd2
- 2.Sxd2#
- 2.Sxd6#
- 1...Rf6!
- threat
- 1.Re3+?
- 1...Kf5
- 2.Qxg6#
- 1...Sxe3!
- 1...Kf5
- 1.Qe8+?
- 1...Re6
- 2.Qxe6#
- 1...Kd5!
- 1...Re6
- 1.Bc6+?
- Keys
- 1.Rf5!
- threat
- 2.Sce3#
- 2.Sxd6#
- 1...Bf2+
- 2.Sce3#
- 1...d5+
- 2.Sd6#
- 1...Kd3
- 2.Sa3#
- 1...Kxf5
- 2.Qxg6#
- 1...Qxd1
- 2.Sxd6#
- 1...Bxc3
- 2.Sxd6#
- 1...Qa2
- 2.Sxd6#
- 1...Qd3
- 2.Sxd6#
- 2.Rf4#
- 1...Bd5
- 2.Sxd6#
- 2.Qxd5#
- 1...Sd2
- 2.Sxd6#
- 1...Se3
- 2.Scxe3#
- 2.Sxd6#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- Q(a);SBLOCK::R1(D)
- R(g);N_GUARD::QAR2(K)
- R(g);N_GUARD::QAR2(K),XR(g)
- B(b);N_GUARD::S(A)
- B(b);CHECK,N_GUARD::S(A),XB(b)
- B(h);SBLOCK::QAB(K),XR(g)
- P(f);CHECK,SBLOCK::QAB(K),XR(g)
- Tries
- Try
- B(G);CHECK
- Refutation
- B(h);XB(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK::R(E)+S(F)
- K(e);S_FLIGHT::QAB1(K),XR(g)
- Q(a);XS(A)::R(E)+S(F),DCHECK,XP(f)
- R(g);XQ(K)::R(E)+S(F)
- B(b);XP(C)::R(E)+S(F),DCHECK,XP(f)
- Q(a);::R(E)+S(F),DCHECK,XP(f)
- S(c);::R(E)+S(F),DCHECK,XP(f)
- Refutation
- R(g);XP(B)
- Try
- B(J);
- Threat
- DUALS(7)
- Vars
- P(f);CHECK::R(E)+S(F),DCHECK
- R(g);N_GUARD,XB(J)::QAR2(K)
- Refutation
- R(g);
- Try
- R(D);CHECK
- Vars
- K(e);S_FLIGHT::QAB1(K),XR(g)
- Refutation
- S(c);XR(D)
- Try
- Q(K);CHECK
- Vars
- R(g);N_GUARD,P_SPINR(g)::QAR2(K),XR(g)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- R(D);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK::R(E)+S(F)
- P(f);CHECK::R(E)+S(F),DCHECK
- K(e);S_FLIGHT::B(G)+S(F)
- K(e);OGATEB,S_FLIGHT,XR(D)::QAB1(K),XR(g)
- Q(a);XS(A)::R(E)+S(F),DCHECK,XP(f)
- B(b);XP(C)::R(E)+S(F),DCHECK,XP(f)
- Q(a);::R(E)+S(F),DCHECK,XP(f)
- S(c);::R(E)+S(F),DCHECK,XP(f)
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).