MESON Chess Problem Database
Problem Display
PID: 106819 (2N4n/3R2p1/q4kp1/2pR2N1/1b2p1P1/6pK/1P6/6Q1 w - - 0 1)
Sim, Malcolm
Illustrated London News, 1904
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf1+
- 2.Qxf1#
- 1...Qe2
- 2.R7d6#
- 1...Qd3
- 2.R7d6#
- 1...Qc4
- 2.R7d6#
- 1...Qb5
- 2.R7d6#
- 1...Qb7
- 2.R7d6#
- 2.Qf1#
- 1...Qxc8
- 2.Qf1#
- 1...Qa1
- 2.R7d6#
- 1...Qa2
- 2.R7d6#
- 2.Qf1#
- 1...Qa3
- 2.R7d6#
- 1...Qa4
- 2.R7d6#
- 2.Qf1#
- 1...Qa5
- 2.R7d6#
- 2.Qf1#
- 1...Qb6
- 2.Qf1#
- 1...Qc6
- 2.Qf1#
- 1...Qd6
- 2.R7xd6#
- 1...Qe6
- 2.Sh7#
- 1...Qa7
- 2.R7d6#
- 2.Qf1#
- 1...Qa8
- 2.R7d6#
- 2.Qf1#
- 1...Sf7
- 2.Rxf7#
- 1...g2
- 2.Qf2#
- 1...c4
- 2.Qd4#
- 2.Qf1#
- 1...Qf1+
- Tries
- 1.Sd6?
- threat
- 2.Sdxe4#
- 2.Se8#
- 1...Qf1+
- 2.Qxf1#
- 1...Qe2
- 2.Se8#
- 1...Qd3
- 2.Se8#
- 1...Qc4
- 2.Se8#
- 1...Qc8
- 2.Sdxe4#
- 2.Qf1#
- 1...Qa8
- 2.Sdxe4#
- 2.Qf1#
- 1...e3
- 2.Sde4#
- 2.Se8#
- 1...Qxd6!
- threat
- 1.Se7?
- threat
- 2.Sg8#
- 1...Qf1+
- 2.Qxf1#
- 1...Qc8
- 2.Qf1#
- 1...Qa8
- 2.Qf1#
- 1...Qe6!
- threat
- 1.R5d6+?
- 1...Ke5
- 2.Qxg3#
- 1...Kxg5
- 2.Qe3#
- 1...Qxd6!
- 1...Ke5
- 1.Re7?
- threat
- 2.Sxe4#
- 2.Sh7#
- 1...Qf1+
- 2.Qxf1#
- 1...Qe2
- 2.Sh7#
- 2.Re6#
- 1...Qd3
- 2.Sh7#
- 2.Re6#
- 1...Qc4
- 2.Sh7#
- 2.Re6#
- 1...Qe6
- 2.Sh7#
- 2.Rxe6#
- 1...e3
- 2.Se4#
- 2.Sh7#
- 1...Qxc8!
- threat
- 1.Qxg3?
- threat
- 2.Qf2#
- 2.Qf4#
- 2.Qe5#
- 1...Be1
- 2.Qf4#
- 2.Qe5#
- 1...Qe2
- 2.R7d6#
- 2.Qf4#
- 2.Qe5#
- 2.Qd6#
- 1...Qd3
- 2.R7d6#
- 1...Qa3
- 2.R7d6#
- 1...Qd6
- 2.R7xd6#
- 2.Qxd6#
- 1...Qe6
- 2.Sh7#
- 1...Bd2
- 2.Qe5#
- 1...Bc3
- 2.Qf2#
- 2.Qf4#
- 2.Qxc3#
- 1...Sf7
- 2.Rxf7#
- 2.Qf2#
- 2.Qf4#
- 1...e3
- 2.Qf4#
- 2.Qe5#
- 2.Qf3#
- 1...Qf1+!
- threat
- 1.Sd6?
- Keys
- 1.Qa1!
- threat
- 2.Qxa6#
- 1...Qf1+
- 2.Qxf1#
- 1...Qxc8
- 2.Qf1#
- 1...Qxa1
- 2.R7d6#
- 1...Qe2
- 2.R7d6#
- 1...Qd3
- 2.R7d6#
- 1...Qc4
- 2.R7d6#
- 1...Qb5
- 2.R7d6#
- 1...Qb7
- 2.R7d6#
- 2.Qf1#
- 1...Qa2
- 2.R7d6#
- 2.Qf1#
- 1...Qa3
- 2.R7d6#
- 1...Qa4
- 2.R7d6#
- 2.Qf1#
- 1...Qa5
- 2.R7d6#
- 2.Qf1#
- 1...Qb6
- 2.Qf1#
- 1...Qc6
- 2.Qf1#
- 1...Qd6
- 2.R7xd6#
- 1...Qe6
- 2.Sh7#
- 1...Qa7
- 2.R7d6#
- 2.Qf1#
- 1...Qa8
- 2.R7d6#
- 2.Qf1#
- 1...Ba3
- 2.bxa3#
- 1...Ba5
- 2.b4#
- 1...Sf7
- 2.Rxf7#
- 1...c4
- 2.Qf1#
- threat
- 1.Qa1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(e);CHECK,N_GUARD::QAR(A),XQ(e)
- Q(e);N_GUARD::R(G)
- Q(e);N_GUARD,XS(H)::QAR(A)
- Q(e);N_GUARD::QAR(A)
- Q(e);N_GUARD::R(G),XQ(e)
- Q(e);P_PINP(D),SBLOCK::S(F)
- S(i);N_GUARD::R1(G),XS(i)
- P(a);N_GUARD::QAR(A)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,N_GUARD::QAR(A),XQ(e)
- Q(e);::S(H)
- Refutation
- Q(e);XS(H)
- Try
- S(H);
- Threat
- S(H)
- Vars
- Q(e);CHECK,N_GUARD::QAR(A),XQ(e)
- Q(e);N_GUARD::QAR(A)
- Refutation
- Q(e);P_PINP(D)
- Try
- R(E);CHECK
- Vars
- K(f);S_FLIGHT::QAB(A),XP(a)
- K(f);S_FLIGHT,XS(F)::QAB(A)
- Refutation
- Q(e);XR(E)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,N_GUARD::QAR(A),XQ(e)
- Refutation
- Q(e);P_PINP(D),XS(H)
- Try
- Q(A);XP(a)
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD,P_PINQ(A)::R(G)
- Q(e);P_PINP(D),SBLOCK::S(F)
- B(b);::QAB1(A)
- Refutation
- Q(e);CHECK
- Try
- Actual
- Q(A);
- Threat
- QAR(A),XQ(e)
- Vars
- Q(e);CHECK,N_GUARD::QAR(A),XQ(e)
- Q(e);N_GUARD,XS(H)::QAR(A)
- Q(e);N_GUARD,XQ(A)::R(G)
- Q(e);N_GUARD::R(G)
- Q(e);N_GUARD::QAR(A)
- Q(e);N_GUARD::R(G),XQ(e)
- Q(e);P_PINP(D),SBLOCK::S(F)
- B(b);OGATE::QAB(A)+P(B),XB(b)
- B(b);OGATE::QAB(A)+P(B)
- S(i);N_GUARD::R1(G),XS(i)
- P(d);S_CUTQ(e)::QAR(A)
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).