MESON Chess Problem Database
Problem Display
PID: 6629 (BQ6/5K2/4N2b/R4Pp1/2NBR3/rp3k1b/3p2p1/3r2nn w - - 0 1)
Blake, Percy Francis
Comm., Il Problema, 1932
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Rxa5
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bxf5
- 2.Rxf5#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Rda1
- Tries
- 1.Kg6?
- 1...Bxf5+
- 2.Rxf5#
- 1...Rxa5
- 2.Qxb3#
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Sf2!
- 1...Bxf5+
- 1.Ke8?
- 1...Rxa5
- 2.Qxb3#
- 1...Bxf5
- 2.Rxf5#
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Sf2!
- 1...Rxa5
- 1.Kg8?
- 1...Rxa5
- 2.Qxb3#
- 1...Bxf5
- 2.Rxf5#
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Sf2!
- 1...Rxa5
- 1.Bxg1?
- threat
- 2.Sd4#
- 1...Bg7
- 2.Sxg5#
- 1...Rxg1!
- threat
- 1.Bc5?
- 1...Rxa5
- 2.Qxb3#
- 1...Sf2
- 2.Sd4#
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Bxf5!
- 1...Rxa5
- 1.Bc6?
- 1...Rxa5
- 2.Qxb3#
- 1...Bxf5
- 2.Rxf5#
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Sf2!
- 1...Rxa5
- 1.Rxa3?
- threat
- 2.Rxb3#
- 2.Qxb3#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Se2
- 2.Rh4#
- 1...g4
- 2.Re1#
- 1...Sf2!
- threat
- 1.Qh2?
- threat
- 2.Se5#
- 1...Bg7
- 2.Sxg5#
- 1...Rxa5!
- threat
- 1.Qg3+?
- 1...Sxg3
- 2.Se5#
- 1...Kxg3!
- 1...Sxg3
- 1.Kg6?
- Keys
- 1.Ba7!
- 1...Rxa5
- 2.Qxb3#
- 1...Bxf5
- 2.Rxf5#
- 1...Sf2
- 2.Sd4#
- 1...Rda1
- 2.Sxd2#
- 1...Rb1
- 2.Sxd2#
- 1...Rc1
- 2.Sxd2#
- 1...Re1
- 2.Sxd2#
- 1...Rf1
- 2.Sxd2#
- 1...Raa1
- 2.Qxb3#
- 1...Ra2
- 2.Qxb3#
- 1...Ra4
- 2.Qxb3#
- 1...Bg4
- 2.Re1#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...Se2
- 2.Rh4#
- 1...Sg3
- 2.Se5#
- 1...b2
- 2.Rxa3#
- 1...g4
- 2.Re1#
- 1...Rxa5
- 1.Ba7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(i);OGATE,XP(E)::R(D),XB(i)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- B(i);CHECK,OGATE,XP(E)::R(D),XB(i)
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
- Refutation
- S(c);
- Try
- K(G);S_FLIGHT
- Vars
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- B(i);OGATE,XP(E)::R(D),XB(i)
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
- Refutation
- S(c);
- Try
- K(G);S_FLIGHT
- Vars
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- B(i);OGATE,XP(E)::R(D),XB(i)
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
- Refutation
- S(c);
- Try
- B(B);XS(b)
- Threat
- S(F)
- Vars
- B(k);N_GUARD::S(F),XP(j)
- Refutation
- R(a);XB(B)
- Try
- B(B);
- Vars
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- S(c);SBLOCK::S(F)
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
- Refutation
- B(i);XP(E)
- Try
- B(H);
- Vars
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- B(i);OGATE,XP(E)::R(D),XB(i)
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
- Refutation
- S(c);
- Try
- R(D);P_PINP(g),XR(f)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::S(A),XP(d)
- S(b);SBLOCK::B(H)+R(C)
- P(j);SBLOCK::B(H)+R(C)
- Refutation
- S(c);
- Try
- Q(I);
- Threat
- S(A)
- Vars
- B(k);N_GUARD::S(F),XP(j)
- Refutation
- R(f);XR(D)
- Try
- Q(I);CHECK
- Vars
- S(c);SBLOCK,XQ(I)::S(A)
- Refutation
- K(h);P-FLIGHT,XQ(I)
- Try
- Actual
- B(B);
- Vars
- R(f);N_GUARD,XR(D)::QAR(I),XP(g)
- B(i);OGATE,XP(E)::R(D),XB(i)
- S(c);SBLOCK::S(F)
- R(a);N_GUARD::S(A),XP(d)
- R(f);N_GUARD::QAR(I),XP(g)
- B(i);SBLOCK::B(H)+R(C)
- B(k);N_GUARD::S(F),XP(j)
- S(b);SBLOCK::B(H)+R(C)
- S(c);SBLOCK::S(A)
- P(g);OGATEB::R(D),XR(f)
- P(j);SBLOCK::B(H)+R(C)
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).