MESON Chess Problem Database
Problem Display
PID: 193980 (2N5/2p5/2p5/rRqRrp1K/1pkp1P2/8/P7/1B5Q w - - 0 1)
Wilhelm, Joseph A
Pittsburgh Gazette-Times, 1916
#2
8 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qc1#
- 1...Qb6
- 2.Qc1#
- 1...Qd6
- 2.Qc1#
- 1...Qa7
- 2.Qc1#
- 1...Qe7
- 2.Qc1#
- 1...Qf8
- 2.Qc1#
- 1...Ra3
- 2.Rbxc5#
- 1...Ra4
- 2.Rbxc5#
- 1...Ra6
- 2.Rbxc5#
- 1...Ra7
- 2.Rbxc5#
- 1...Ra8
- 2.Rbxc5#
- 1...Re1
- 2.Rdxc5#
- 1...Re2
- 2.Rdxc5#
- 1...Re3
- 2.Rdxc5#
- 1...Re4
- 2.Rdxc5#
- 1...Re6
- 2.Rdxc5#
- 1...Re7
- 2.Rdxc5#
- 1...Re8
- 2.Rdxc5#
- 1...Kc3
- Tries
- 1.Sd6+?
- 1...Kc3
- 2.Qc1#
- 1...Qxd6
- 2.Qc1#
- 1...cxd6!
- 1...Kc3
- 1.Qf3?
- 1...Qxb5
- 2.Qb3#
- 1...Qxd5
- 2.Qd3#
- 1...Rxa2
- 2.Rbxc5#
- 1...Rxb5
- 2.Qb3#
- 1...Rxd5
- 2.Qd3#
- 1...cxb5
- 2.Qb3#
- 1...cxd5
- 2.Qd3#
- 1...Re3
- 2.Rdxc5#
- 1...Re4
- 2.Rdxc5#
- 1...d3
- 2.Qxd3#
- 1...Qb6
- 2.Qb3#
- 2.Qd3#
- 1...Qd6
- 2.Qb3#
- 2.Qd3#
- 1...Qa7
- 2.Qb3#
- 2.Qd3#
- 1...Qe7
- 2.Qb3#
- 2.Qd3#
- 1...Qf8
- 2.Qb3#
- 2.Qd3#
- 1...Ra3
- 2.Rbxc5#
- 1...Ra4
- 2.Rbxc5#
- 1...Ra6
- 2.Rbxc5#
- 1...Ra7
- 2.Rbxc5#
- 1...Ra8
- 2.Rbxc5#
- 1...Re1
- 2.Rdxc5#
- 1...Re2
- 2.Rdxc5#
- 1...Re6
- 2.Rdxc5#
- 1...Re7
- 2.Rdxc5#
- 1...Re8
- 2.Rdxc5#
- 1...b3
- 2.Qxb3#
- 1...Kxb5!
- 1...Qxb5
- 1.Qf1+?
- 1...Kc3
- 2.Qc1#
- 1...Re2
- 2.Rdxc5#
- 1...d3
- 2.Qxd3#
- 1...Kxd5!
- 1...Kc3
- 1.Qh3?
- 1...Kxd5
- 2.Qb3#
- 1...Qxb5
- 2.Qb3#
- 1...Qxd5
- 2.Qd3#
- 1...Rxa2
- 2.Rbxc5#
- 1...Rxb5
- 2.Qb3#
- 1...Rxd5
- 2.Qd3#
- 1...cxb5
- 2.Qb3#
- 1...cxd5
- 2.Qd3#
- 1...Re3
- 2.Rdxc5#
- 1...d3
- 2.Qxd3#
- 1...Qb6
- 2.Qb3#
- 2.Qd3#
- 1...Qd6
- 2.Qb3#
- 2.Qd3#
- 1...Qa7
- 2.Qb3#
- 2.Qd3#
- 1...Qe7
- 2.Qb3#
- 2.Qd3#
- 1...Qf8
- 2.Qb3#
- 2.Qd3#
- 1...Ra3
- 2.Rbxc5#
- 1...Ra4
- 2.Rbxc5#
- 1...Ra6
- 2.Rbxc5#
- 1...Ra7
- 2.Rbxc5#
- 1...Ra8
- 2.Rbxc5#
- 1...Re1
- 2.Rdxc5#
- 1...Re2
- 2.Rdxc5#
- 1...Re4
- 2.Rdxc5#
- 1...Re6
- 2.Rdxc5#
- 1...Re7
- 2.Rdxc5#
- 1...Re8
- 2.Rdxc5#
- 1...b3
- 2.Qxb3#
- 1...Kxb5!
- 1...Kxd5
- 1.Sd6+?
- Keys
- 1.Qd1!
- 1...Kc3
- 2.Qc2#
- 2.Qc1#
- 1...Kxb5
- 2.Bd3#
- 1...Kxd5
- 2.Qb3#
- 1...Qxb5
- 2.Qb3#
- 2.Qxd4#
- 1...Qxd5
- 2.Qd3#
- 1...Rxa2
- 2.Rbxc5#
- 1...Rxb5
- 2.Qb3#
- 1...Rxd5
- 2.Qd3#
- 1...cxb5
- 2.Qb3#
- 1...cxd5
- 2.Qd3#
- 1...Qb6
- 2.Qc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qd3#
- 1...Qd6
- 2.Qc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qd3#
- 2.Qxd4#
- 1...Qa7
- 2.Qc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qd3#
- 1...Qe7
- 2.Qc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qd3#
- 2.Qxd4#
- 1...Qf8
- 2.Qc2#
- 2.Qb3#
- 2.Qc1#
- 2.Qd3#
- 2.Qxd4#
- 1...Ra3
- 2.Rbxc5#
- 1...Ra4
- 2.Rbxc5#
- 1...Ra6
- 2.Rbxc5#
- 1...Ra7
- 2.Rbxc5#
- 1...Ra8
- 2.Rbxc5#
- 1...Re1
- 2.Rdxc5#
- 1...Re2
- 2.Rdxc5#
- 1...Re3
- 2.Rdxc5#
- 1...Re4
- 2.Rdxc5#
- 1...Re6
- 2.Rdxc5#
- 1...Re7
- 2.Rdxc5#
- 1...Re8
- 2.Rdxc5#
- 1...b3
- 2.Qxb3#
- 1...d3
- 2.Qxd3#
- 1...Kc3
- 1.Qd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 6
- Sets
- K(b);P-FLIGHT::QAR2(B)
- Q(e);::QAR(B)
- R(d);N_GUARD::R1(E),XQ(e)
- R(f);N_GUARD::R1(F),XQ(e)
- Tries
- Try
- S(H);CHECK
- Vars
- K(b);P-FLIGHT::QAR2(B)
- Q(e);XS(H)::QAR(B)
- Refutation
- P(i);XS(H)
- Try
- Q(B);
- Vars
- Q(e);XR(E)::QAB1(B)
- Q(e);XR(F)::QAB1(B)
- R(d);N_GUARD,XP(C)::R1(E),XQ(e)
- R(d);SBLOCK,XR(E)::QAB1(B)
- R(f);SBLOCK,XR(F)::QAB1(B)
- P(h);SBLOCK,XR(E)::QAB1(B)
- P(h);SBLOCK,XR(F)::QAB1(B)
- R(f);N_GUARD::R1(F),XQ(e)
- P(c);::QAB1(B),XP(c)
- R(d);N_GUARD::R1(E),XQ(e)
- P(a);::QAB1(B),XP(a)
- Refutation
- K(b);P_SPINQ(e),S_FLIGHT,XR(E)
- Try
- Q(B);CHECK
- Vars
- K(b);P-FLIGHT::QAR2(B)
- R(f);P_SPINR(f)::R1(F),XQ(e)
- P(c);P_SPINP(c)::QAB1(B),XP(c)
- Refutation
- K(b);P_SPINQ(e),S_FLIGHT,XR(F)
- Try
- Q(B);
- Vars
- K(b);P_SPINQ(e),S_FLIGHT,XR(F)::QAB(B)
- Q(e);XR(E)::QAB1(B)
- Q(e);XR(F)::QAB1(B)
- R(d);N_GUARD,XP(C)::R1(E),XQ(e)
- R(d);SBLOCK,XR(E)::QAB1(B)
- R(f);SBLOCK,XR(F)::QAB1(B)
- P(h);SBLOCK,XR(E)::QAB1(B)
- P(h);SBLOCK,XR(F)::QAB1(B)
- R(f);N_GUARD::R1(F),XQ(e)
- P(c);::QAB1(B),XP(c)
- R(d);N_GUARD::R1(E),XQ(e)
- P(a);::QAB1(B),XP(a)
- Refutation
- K(b);P_SPINQ(e),S_FLIGHT,XR(E)
- Try
- Actual
- Q(B);
- Vars
- K(b);P_SPINQ(e),S_FLIGHT,XR(E)::B(A)
- K(b);P_SPINP(c),P_SPINQ(e),S_FLIGHT,XR(F)::QAB(B)
- Q(e);XR(F)::QAB1(B)
- R(d);N_GUARD,XP(C)::R1(E),XQ(e)
- R(d);SBLOCK,XR(E)::QAB1(B)
- R(f);SBLOCK,XR(F)::QAB1(B)
- P(h);SBLOCK,XR(E)::QAB1(B)
- P(h);SBLOCK,XR(F)::QAB1(B)
- R(d);N_GUARD::R1(E),XQ(e)
- R(f);N_GUARD::R1(F),XQ(e)
- P(a);::QAB1(B),XP(a)
- P(c);::QAB1(B),XP(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).