MESON Chess Problem Database
Problem Display
PID: 71214 (8/4p3/pB2P2n/K1R5/1P5Q/1p2qpn1/p4k1N/R4Bb1 w - - 0 1)
Michel, Francois
Monreal, Pierre
British Chess Magazine, 1965
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Rcxc1#
- 1...Qd2
- 2.Rc2#
- 1...Qd4
- 2.Qxd4#
- 1...Qf4
- 2.Rc2#
- 1...Qxc5+
- 2.Bxc5#
- 1...Qg5
- 2.Rxg5#
- 1...Qe1
- 2.Rc2#
- 1...Qe2
- 2.Rc2#
- 1...Qc3
- 2.Rxc3#
- 1...Qd3
- 2.Rc2#
- 1...Qe4
- 2.Rc2#
- 1...Qe5
- 2.Rxe5#
- 1...Qxe6
- 2.Rc2#
- 1...Bxh2
- 2.Qxh2#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qc1
- Tries
- 1.Ka4?
- 1...Qxc5
- 2.Bxc5#
- 1...Qxe6
- 2.Rc2#
- 1...Bxh2
- 2.Qxh2#
- 1...Qc1
- 2.Rcxc1#
- 1...Qd2
- 2.Rc2#
- 1...Qd4
- 2.Qxd4#
- 1...Qf4
- 2.Rc2#
- 1...Qg5
- 2.Rc2#
- 2.Rxg5#
- 1...Qe1
- 2.Rc2#
- 1...Qe2
- 2.Rc2#
- 1...Qc3
- 2.Rxc3#
- 1...Qd3
- 2.Rc2#
- 1...Qe4
- 2.Rc2#
- 1...Qe5
- 2.Rc2#
- 2.Rxe5#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...a5!
- 1...Qxc5
- 1.Rcc1?
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qxb6+!
- 1...Qc5+
- 1.Rc3?
- threat
- 2.Bxe3#
- 1...Qc5+
- 2.Bxc5#
- 1...Qd4
- 2.Bxd4#
- 2.Rxf3#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Qxb6+!
- threat
- 1.Rc4?
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qxb6+!
- 1...Qc5+
- 1.Rd5?
- threat
- 2.Rd2#
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Qxb6+!
- threat
- 1.Re5?
- threat
- 2.Bxe3#
- 1...Qc5+
- 2.Bxc5#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Qxb6+!
- threat
- 1.Rf5?
- threat
- 2.Rxf3#
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Sxf5
- 2.Sg4#
- 1...Qxb6+!
- threat
- 1.Rg5?
- threat
- 2.Qxg3#
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Qxb6+!
- threat
- 1.Rc6?
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qxb6+!
- 1...Qc5+
- 1.Rc7?
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qxb6+!
- 1...Qc5+
- 1.Rc8?
- 1...Qc5+
- 2.Bxc5#
- 1...Bxh2
- 2.Qxh2#
- 1...Qd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qxb6+!
- 1...Qc5+
- 1.Ka4?
- Keys
- 1.Ba7!
- 1...Qxc5+
- 2.Bxc5#
- 1...Qxe6
- 2.Rc2#
- 1...Bxh2
- 2.Qxh2#
- 1...Qc1
- 2.Rcxc1#
- 1...Qd2
- 2.Rc2#
- 1...Qd4
- 2.Qxd4#
- 1...Qf4
- 2.Rc2#
- 1...Qg5
- 2.Rxg5#
- 1...Qe1
- 2.Rc2#
- 1...Qe2
- 2.Rc2#
- 1...Qc3
- 2.Rxc3#
- 1...Qd3
- 2.Rc2#
- 1...Qe4
- 2.Rc2#
- 1...Qe5
- 2.Rxe5#
- 1...Sg4
- 2.Sxg4#
- 1...Sf5
- 2.Sg4#
- 1...Sf7
- 2.Sg4#
- 1...Sg8
- 2.Sg4#
- 1...b2
- 2.Rc2#
- 1...Qxc5+
- 1.Ba7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(e);OGATEB::B(H)+R(G),XQ(e)
- Q(e);P_PINP(D),S_CUTP(d)::B(H)+R(G)
- Q(e);OGATEB::QAB(E),XQ(e)
- Q(e);::B(H)+R(G),DCHECK
- Q(e);CHECK,OGATE,P_SPINQ(e),XR(G)::B(H),XQ(e)
- Q(e);OGATEB,P_PINR(G)::B(H)+R(G),XQ(e)
- Q(e);P_PINP(D)::B(H)+R(G),DCHECK
- Q(e);S_CUTP(d)::B(H)+R(G)
- Q(e);OGATEB,P_PINP(D)::B(H)+R(G),XQ(e)
- Q(e);XP(I)::B(H)+R(G),DCHECK
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- Q(e);OGATE,P_SPINQ(e),XR(G)::B(H),XQ(e)
- Q(e);XP(I)::B(H)+R(G),DCHECK
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- Q(e);OGATEB::B(H)+R(G),XQ(e)
- Q(e);S_CUTP(d)::B(H)+R(G)
- Q(e);OGATEB,P_PINP(D)::QAB(E),XQ(e)
- Q(e);P_PINP(D)::B(H)+R(G),DCHECK
- Q(e);::B(H)+R(G),DCHECK
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Refutation
- P(h);
- Try
- R(G);P_PINQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Threat
- B(H),XQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Threat
- R(G)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Threat
- B(H),XQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINP(f),P_PINQ(e)
- Threat
- R1(G),XP(f)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD,N_SPINP(f),XR(G)::S(C)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Threat
- QAB1(E),XS(g)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- R(G);P_PINQ(e)
- Vars
- Q(e);CHECK,OGATEB::B(H),XQ(e)
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
- Refutation
- Q(e);CHECK,N_SPINQ(e),XB(H)
- Try
- Actual
- B(H);
- Vars
- Q(e);CHECK,OGATE,P_SPINQ(e),XR(G)::B(H),XQ(e)
- Q(e);XP(I)::B(H)+R(G),DCHECK
- B(a);OGATE,XS(C)::QAR2(E),XB(a)
- Q(e);OGATEB::B(H)+R(G),XQ(e)
- Q(e);P_PINP(D),S_CUTP(d)::B(H)+R(G)
- Q(e);OGATEB::QAB(E),XQ(e)
- Q(e);::B(H)+R(G),DCHECK
- Q(e);OGATEB,P_PINR(G)::B(H)+R(G),XQ(e)
- Q(e);P_PINP(D)::B(H)+R(G),DCHECK
- Q(e);S_CUTP(d)::B(H)+R(G)
- Q(e);OGATEB,P_PINP(D)::B(H)+R(G),XQ(e)
- S(i);N_GUARD::S(C),XS(i)
- S(i);N_GUARD::S(C)
- P(d);N_GUARD::R(G)
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).