MESON Chess Problem Database
Problem Display
PID: 101074 (1B3qn1/6r1/2pR1p2/p3kB2/P7/KP1Q2p1/P5N1/4rn2 w - - 0 1)
Madsen, Arthur Valdemar
Good Companions, 1920
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxd6+
- 2.Bxd6#
- 1...Qf7
- 2.Rd5#
- 2.Re6#
- 2.Rd7#
- 1...Qxb8
- 2.Re6#
- 1...Qc8
- 2.Rd5#
- 2.Re6#
- 1...Qd8
- 2.Rd5#
- 2.Re6#
- 1...Qe8
- 2.Rd5#
- 2.Re6#
- 1...Ra1
- 2.Qe4#
- 1...Rb1
- 2.Qe4#
- 1...Rc1
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Re7
- 2.Rd5#
- 2.Re6#
- 1...Se3
- 2.Qe4#
- 1...Se7
- 2.Rd5#
- 2.Re6#
- 2.Rd8#
- 1...c5
- 2.Rd5#
- 2.Re6#
- 2.Qd5#
- 1...Qxd6+
- Tries
- 1.Bg6?
- threat
- 2.Qf5#
- 2.Qc3#
- 2.Qd4#
- 1...Qxd6+
- 2.Qxd6#
- 1...Qxb8
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...Qc8
- 2.Qc3#
- 2.Qd4#
- 1...Rc1
- 2.Qe4#
- 2.Qf5#
- 2.Qd4#
- 1...Rd1
- 2.Qe4#
- 2.Qf5#
- 1...Re3
- 2.Qf5#
- 2.Qd4#
- 1...Rc7
- 2.Qd4#
- 1...Se3
- 2.Qe4#
- 2.Qc3#
- 2.Qd4#
- 1...Sh6
- 2.Qc3#
- 2.Qd4#
- 1...Se7
- 2.Qc3#
- 2.Qd4#
- 1...c5
- 2.Qf5#
- 2.Qc3#
- 2.Qd5#
- 1...f5
- 2.Qd4#
- 1...Rxg6!
- threat
- 1.Qc4?
- threat
- 2.Qe6#
- 2.Qf4#
- 2.Qc5#
- 1...Qxd6+
- 2.Qc5#
- 1...Re4
- 2.Qe6#
- 2.Qxe4#
- 2.Qc5#
- 1...Qe7
- 2.Qf4#
- 2.Qc5#
- 1...Qf7
- 2.Rd5#
- 2.Qf4#
- 1...Qc8
- 2.Rd5#
- 2.Qf4#
- 2.Qc5#
- 1...Qe8
- 2.Rd5#
- 2.Qf4#
- 2.Qc5#
- 1...Rc1
- 2.Qe6#
- 2.Qe4#
- 2.Qf4#
- 1...Rd1
- 2.Qe6#
- 2.Qe4#
- 2.Qf4#
- 1...Rg4
- 2.Qe6#
- 2.Qc5#
- 1...Re7
- 2.Rd5#
- 2.Qf4#
- 2.Qc5#
- 1...Se3
- 2.Qe6#
- 2.Qe4#
- 2.Qf4#
- 1...Se7
- 2.Rd5#
- 2.Qe6#
- 2.Qf4#
- 1...c5
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 2.Qf4#
- 2.Qxc5#
- 1...Kxf5!
- threat
- 1.Qb5+?
- 1...c5
- 2.Qxc5#
- 1...cxb5!
- 1...c5
- 1.b4?
- threat
- 2.Rd5#
- 2.Re6#
- 1...Qxd6
- 2.Bxd6#
- 1...Qxb8
- 2.Re6#
- 1...Re4
- 2.Rd5#
- 2.Qxe4#
- 1...Rc7
- 2.Re6#
- 1...axb4+!
- threat
- 1.Bg6?
- Keys
- 1.Qc2!
- threat
- 2.Qc5#
- 1...Qf7
- 2.Rd7#
- 1...Rc1
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Se3
- 2.Qe4#
- 1...Se7
- 2.Rd8#
- 1...c5
- 2.Qxc5#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(i);CHECK,OGATE,P_SPINQ(i),XR(H)::B(I),XQ(i)
- Q(i);N_PINR(H),XB(I)::R1(H)
- R(a);N_GUARD,P_PINP(A)::QAR1(E)
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- S(b);S_CUTR(a)::QAR1(E)
- Tries
- Try
- B(G);
- Threat
- DUALS(3)
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XR(H)::QAB1(E),XQ(i)
- Q(i);N_PINR(H),XB(I)::QAB1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- R(h);::QAB1(E)
- P(g);::QAB1(E)
- Refutation
- R(h);XB(G)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(i);CHECK,P_SPINQ(i),XR(H)::QAR2(E)
- Refutation
- K(e);P-FLIGHT,XB(G)
- Try
- Q(E);CHECK
- Vars
- P(f);N_PINR(H),P_SPINP(f)::QAR2(E),XP(f)
- Refutation
- P(f);XQ(E)
- Try
- P(D);N_SPINR(H)
- Threat
- DUALS(2)
- Vars
- Q(i);OGATE,P_PINP(D),P_SPINQ(i),XR(H)::B(I),XQ(i)
- Q(i);XB(I)::R1(H)
- R(h);::R1(H)
- Refutation
- P(d);CHECK,XP(D)
- Try
- Actual
- Q(E);
- Threat
- QAR2(E)
- Vars
- Q(i);N_PINR(H)::B(I)+R(H)
- R(a);N_GUARD::QAR1(E)
- S(b);S_CUTR(a)::QAR1(E)
- S(j);N_PINR(H)::B(I)+R(H)
- P(f);N_PINR(H)::QAR2(E),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).