MESON Chess Problem Database
Problem Display
PID: 54260 (4R2n/2b2pK1/8/r2P1kpp/2Q5/4P2P/p3p3/Bb2NB2 w - - 0 1)
Roemele, HJ
Chess Life, 1956
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Bh2
- 2.Qc8#
- 1...Bg3
- 2.Qc8#
- 1...Bf4
- 2.Qc8#
- 1...Be5+
- 2.Rxe5#
- 1...Bb6
- 2.Re5#
- 2.Qc8#
- 1...Bd6
- 2.Qc8#
- 1...Bb8
- 2.Qc8#
- 1...Bd8
- 2.Re5#
- 2.Qc8#
- 1...h4
- 2.Qg4#
- 1...Bc2
- Tries
- 1.Sc2?
- threat
- 2.Sd4#
- 2.Qd3#
- 2.Qe4#
- 1...Be5+
- 2.Rxe5#
- 1...Rxd5
- 2.Qe4#
- 1...Bxc2
- 2.Qxc2#
- 1...exf1Q
- 2.Sd4#
- 2.Qe4#
- 1...exf1B
- 2.Sd4#
- 2.Qe4#
- 1...e1S
- 2.Sd4#
- 2.Qe4#
- 1...Ra3
- 2.Sd4#
- 2.Qe4#
- 1...Ra4
- 2.Sd4#
- 1...Bb6
- 2.Re5#
- 2.Qd3#
- 2.Qe4#
- 2.Qc8#
- 1...g4!
- threat
- 1.Sd3?
- threat
- 2.Qe4#
- 2.e4#
- 1...Be5+
- 2.Rxe5#
- 1...Bxd3
- 2.Qxd3#
- 1...e1Q
- 2.Qe4#
- 1...e1R
- 2.Qe4#
- 1...Ra4
- 2.e4#
- 1...g4!
- threat
- 1.Qa6?
- threat
- 2.Qc8#
- 2.Qf6#
- 1...Be5+
- 2.Rxe5#
- 1...Rxd5
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Bb6
- 2.Re5#
- 2.Qc8#
- 1...Bd6
- 2.Qc8#
- 1...Bd8
- 2.Re5#
- 2.Qc8#
- 1...f6
- 2.Qc8#
- 2.Qe6#
- 2.Qxf6#
- 1...Rxa6!
- threat
- 1.Qc3?
- threat
- 2.Qf6#
- 1...Be5+
- 2.Rxe5#
- 2.Qxe5#
- 1...Bd8
- 2.Re5#
- 2.Qe5#
- 2.Qc8#
- 1...f6
- 2.Qxf6#
- 1...Ra6!
- threat
- 1.Qd4?
- threat
- 2.Qf6#
- 1...Be5+
- 2.Rxe5#
- 2.Qxe5#
- 1...Bd8
- 2.Re5#
- 2.Qe5#
- 1...f6
- 2.Qxf6#
- 1...Ra6!
- threat
- 1.Qc6?
- threat
- 2.Qd7#
- 2.Qf6#
- 1...Be5+
- 2.Rxe5#
- 1...Rxd5
- 2.Qf6#
- 1...g4
- 2.Qf6#
- 1...Bd6
- 2.Qd7#
- 2.Qc8#
- 1...Bd8
- 2.Re5#
- 2.Qd7#
- 2.Qc8#
- 1...f6
- 2.Qd7#
- 2.Qe6#
- 2.Qxf6#
- 1...Ra6!
- threat
- 1.Qxc7?
- threat
- 2.Re5#
- 2.Qe5#
- 2.Qd7#
- 2.Qc8#
- 1...g4
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...Ra6
- 2.Re5#
- 2.Qe5#
- 1...Rc5
- 2.Re5#
- 2.Qe5#
- 2.Qd7#
- 1...Ra7
- 2.Re5#
- 2.Qe5#
- 1...Ra8
- 2.Re5#
- 2.Qe5#
- 2.Qd7#
- 1...Sg6
- 2.Qd7#
- 2.Qxf7#
- 2.Qc8#
- 1...f6
- 2.Qd7#
- 2.Qc8#
- 1...Rxd5!
- threat
- 1.e4+?
- 1...Bxe4
- 2.Qxe4#
- 1...Kf4!
- 1...Bxe4
- 1.Sc2?
- Keys
- 1.d6!
- 1...Bxd6
- 2.Qc8#
- 1...exf1Q
- 2.Qxf1#
- 1...exf1S
- 2.Qxf1#
- 1...exf1B
- 2.Qxf1#
- 1...exf1R
- 2.Qxf1#
- 1...g4
- 2.Qf4#
- 1...Ra6
- 2.Re5#
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra3
- 2.Re5#
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra4
- 2.Re5#
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Rb5
- 2.Qxb5#
- 1...Rc5
- 2.Qxc5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Rxe5#
- 1...Ra7
- 2.Re5#
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Ra8
- 2.Re5#
- 2.Qb5#
- 2.Qd5#
- 2.Qc5#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Bb6
- 2.Qc8#
- 1...Bb8
- 2.Qc8#
- 1...Bd8
- 2.Qc8#
- 1...Sg6
- 2.Qxf7#
- 1...h4
- 2.Qg4#
- 1...f6
- 2.Qe6#
- 1...Bxd6
- 1.d6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 4
- Sets
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- B(h);OGATE::QAB(F)
- B(h);CHECK,N_GUARD::R1(I),XB(h)
- P(g);N_GUARD::QAB1(F)
- Tries
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- B(h);CHECK,N_GUARD::R1(I),XB(h)
- R(d);XP(G)::QAB1(F)
- B(a);OGATE,XS(B)::QAB(F),XB(a)
- R(d);::S(B)
- Refutation
- P(f);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,N_GUARD::R1(I),XB(h)
- B(a);OGATE,XS(B)::QAB(F),XB(a)
- P(c);::QAB1(F)
- R(d);::P(D)
- Refutation
- P(f);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,N_GUARD::R1(I),XB(h)
- R(d);XP(G)::QAR1(F)
- P(f);::QAR1(F)
- B(h);::QAB(F)
- Refutation
- R(d);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- P(i);::QAR1(F),XP(i)
- Refutation
- R(d);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- P(i);::QAR1(F),XP(i)
- Refutation
- R(d);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,N_GUARD::R1(I),XB(h)
- R(d);XP(G)::QAR1(F)
- P(f);::QAR1(F)
- Refutation
- R(d);
- Try
- Q(F);XB(h)
- Threat
- DUALS(4)
- Refutation
- R(d);XP(G)
- Try
- P(D);CHECK
- Vars
- B(a);OGATE,XP(D)::QAB1(F),XB(a)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- P(G);
- Vars
- B(h);OGATE,XP(G)::QAB(F)
- P(c);OGATE,XB(C)::QAR(F),XQ(c)
- P(c);OGATE,XB(C)::QAR(F),XS(c)
- P(c);OGATE,XB(C)::QAR(F),XB(c)
- P(c);OGATE,XB(C)::QAR(F),XR(c)
- P(f);N_GUARD::QAR1(F)
- R(d);N_GUARD::QAR(F),XR(d)
- R(d);N_GUARD::QAR2(F),XR(d)
- R(d);N_GUARD::R1(I),XR(d)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);N_GUARD::QAB1(F),XB(a)
- B(h);OGATE::QAB(F)
- S(j);N_GUARD::QAR2(F),XP(i)
- P(g);N_GUARD::QAB1(F)
- P(i);N_GUARD::QAB1(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).