MESON Chess Problem Database
Problem Display
PID: 93250 (8/b2B4/3pR3/n1Pk1p2/N7/3PP2p/5KbP/2RQ4 w - - 0 1)
Madsen, Arthur Valdemar
Skakbladet, 1933
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Qf3#
- 1...Bh1
- 2.Qxh1#
- 1...Bf3
- 2.Qxf3#
- 1...Be4
- 2.dxe4#
- 1...Bxc5
- 2.Sc3#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.dxc4#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4
- 2.Qh5#
- 1...dxc5
- 2.Sc3#
- 1...Bf1
- Tries
- 1.Ke1?
- 1...Bxc5
- 2.Sc3#
- 1...dxc5
- 2.Sc3#
- 1...Bf1
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Be4
- 2.dxe4#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.dxc4#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4
- 2.Qh5#
- 1...Bh1!
- 1...Bxc5
- 1.Kg1?
- 1...Bxc5
- 2.Sc3#
- 1...dxc5
- 2.Sc3#
- 1...Bf1
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Be4
- 2.dxe4#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.dxc4#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4
- 2.Qh5#
- 1...Bh1!
- 1...Bxc5
- 1.Kg3?
- 1...Bxc5
- 2.Sc3#
- 1...dxc5
- 2.Sc3#
- 1...Bh1
- 2.Qxh1#
- 1...Bf1
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Be4
- 2.dxe4#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.dxc4#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4+!
- 1...Bxc5
- 1.Rc4?
- threat
- 2.Sc3#
- 2.Rd4#
- 1...Bxc5
- 2.Sc3#
- 1...dxc5
- 2.Sc3#
- 1...Sb3
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...Sxc4!
- threat
- 1.Re7?
- 1...Bxc5
- 2.Sc3#
- 1...Be4
- 2.dxe4#
- 1...Bf1
- 2.Qf3#
- 1...Bh1
- 2.Qxh1#
- 1...Bf3
- 2.Qxf3#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.dxc4#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4
- 2.Qh5#
- 1...dxc5!
- 1...Bxc5
- 1.Re8?
- 1...Bxc5
- 2.Sc3#
- 1...Be4
- 2.dxe4#
- 1...Bf1
- 2.Qf3#
- 1...Bh1
- 2.Qxh1#
- 1...Bf3
- 2.Qxf3#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.dxc4#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4
- 2.Qh5#
- 1...dxc5!
- 1...Bxc5
- 1.Qb3+?
- 1...Sc4
- 2.Qxc4#
- 2.Qb7#
- 2.dxc4#
- 1...Sxb3!
- 1...Sc4
- 1.Qh5?
- threat
- 2.Qxf5#
- 1...Be4
- 2.dxe4#
- 1...Sc4
- 2.dxc4#
- 1...Sc6!
- threat
- 1.e4+?
- 1...Bxe4
- 2.dxe4#
- 1...fxe4
- 2.dxe4#
- 1...Kd4!
- 1...Bxe4
- 1.Ke1?
- Keys
- 1.d4!
- 1...Bxc5
- 2.dxc5#
- 1...dxc5
- 2.dxc5#
- 1...Be4
- 2.Rxd6#
- 1...Bf1
- 2.Qf3#
- 1...Bh1
- 2.Qxh1#
- 1...Bf3
- 2.Qxf3#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 1...Sb3
- 2.Qxb3#
- 1...Sc4
- 2.Sc3#
- 1...Sc6
- 2.Qb3#
- 1...Sb7
- 2.Qb3#
- 1...f4
- 2.Qh5#
- 1...Bxc5
- 1.d4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAB(B)
- B(a);OGATEB::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::QAR(B)+P(E)DCHECK,XB(a)
- B(g);P_PINP(F),SBLOCK,XP(H)::S(G)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);OGATE::QAR(B)+P(E)DCHECK,XS(c)
- S(c);N_GUARD::QAB(B)
- P(e);OGATEB::QAR(B)
- P(f);SBLOCK,XP(H)::S(G)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- B(g);SBLOCK,XP(H)::S(G)
- P(f);SBLOCK,XP(H)::S(G)
- B(a);N_GUARD::QAB(B)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::QAR(B)+P(E)DCHECK,XB(a)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);OGATE::QAR(B)+P(E)DCHECK,XS(c)
- S(c);N_GUARD::QAB(B)
- P(e);OGATEB::QAR(B)
- Refutation
- B(a);
- Try
- K(C);S_FLIGHT
- Vars
- B(g);P_PINP(F),SBLOCK,XP(H)::S(G)
- P(f);SBLOCK,XP(H)::S(G)
- B(a);N_GUARD::QAB(B)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::QAR(B)+P(E)DCHECK,XB(a)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);OGATE::QAR(B)+P(E)DCHECK,XS(c)
- S(c);N_GUARD::QAB(B)
- P(e);OGATEB::QAR(B)
- Refutation
- B(a);
- Try
- K(C);S_FLIGHT
- Vars
- B(g);SBLOCK,XP(H)::S(G)
- P(f);SBLOCK,XP(H)::S(G)
- B(a);OGATEB::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B)
- B(a);N_GUARD::QAB(B),XB(a)
- B(a);OGATE::QAR(B)+P(E)DCHECK,XB(a)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);OGATE::QAR(B)+P(E)DCHECK,XS(c)
- S(c);N_GUARD::QAB(B)
- Refutation
- P(e);CHECK
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- B(g);P_PINP(F),XP(H)::S(G)
- P(f);XP(H)::S(G)
- S(c);::S(G)
- Refutation
- S(c);XR(A)
- Try
- R(I);
- Vars
- B(g);P_PINP(F),SBLOCK,XP(H)::S(G)
- B(a);OGATE::QAR(B)+P(E)DCHECK,XB(a)
- B(a);N_GUARD::QAB(B)
- B(a);OGATEB::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);OGATE::QAR(B)+P(E)DCHECK,XS(c)
- S(c);N_GUARD::QAB(B)
- P(e);OGATEB::QAR(B)
- Refutation
- P(f);XP(H)
- Try
- R(I);
- Vars
- B(g);P_PINP(F),SBLOCK,XP(H)::S(G)
- B(a);OGATE::QAR(B)+P(E)DCHECK,XB(a)
- B(a);N_GUARD::QAB(B)
- B(a);OGATEB::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);OGATE::QAR(B)+P(E)DCHECK,XS(c)
- S(c);N_GUARD::QAB(B)
- P(e);OGATEB::QAR(B)
- Refutation
- P(f);XP(H)
- Try
- Q(B);CHECK
- Refutation
- S(c);XQ(B)
- Try
- Q(B);P_PINP(e)
- Threat
- QAR2(B),XP(e)
- Vars
- B(a);OGATE::P(E),XB(a)
- S(c);OGATE::P(E),XS(c)
- Refutation
- S(c);
- Try
- P(F);CHECK,P_SPINP(H)
- Vars
- B(a);OGATE,XP(F)::QAR(B)+P(E)DCHECK,XB(a)
- P(e);OGATE,XP(F)::QAR(B)+P(E)DCHECK,XP(e)
- Refutation
- K(d);N_PINP(H),P-FLIGHT
- Try
- Actual
- P(E);
- Vars
- B(g);OGATE,XP(H)::QAR(B)+P(E),XB(g)
- P(f);OGATE,XP(H)::QAR(B)+P(E),XP(f)
- B(a);SBLOCK::R1(I),XP(f)
- B(a);N_GUARD::QAB(B)
- B(a);OGATEB::QAB(B),XB(a)
- B(a);N_GUARD::QAB(B),XB(a)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(c);N_GUARD::QAB(B),XS(c)
- S(c);SBLOCK::S(G)
- S(c);N_GUARD::QAB(B)
- P(e);OGATEB::QAR(B)
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).