MESON Chess Problem Database
Problem Display
PID: 30772 (2k5/1p6/b1p3p1/3RBp2/1r2B3/Q7/7p/2R4K w - - 0 1)
Williams, Philip Hamilton
Chess Amateur (The), 1910
#2
6 + 8
| 2638 | White to Play | 1913 |
| 56 | The Problemist | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qf8#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Rxe4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...fxe4
- 2.Qh3#
- 1...f4
- 2.Qh3#
- 1...c5
- 2.Rcxc5#
- 1...g5
- 2.Bxf5#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rb1
- Tries
- 1.Kxh2?
- 1...Rxe4
- 2.Qf8#
- 1...fxe4
- 2.Qh3#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rb1
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Qh3#
- 1...c5
- 2.Rcxc5#
- 1...g5
- 2.Bxf5#
- 1...Rb2+!
- 1...Rxe4
- 1.Bg2?
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rb1
- 2.Qf8#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Re4
- 2.Qf8#
- 1...Rf4
- 2.Qf8#
- 1...Rg4
- 2.Qf8#
- 1...Rh4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Bh3#
- 2.Qh3#
- 1...c5
- 2.Rcxc5#
- 1...g5!
- 1...b5
- 1.Bd3?
- 1...Bxd3
- 2.Qa8#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Bxa6#
- 2.Qxa6#
- 1...Rb1
- 2.Qf8#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Re4
- 2.Qf8#
- 1...Rf4
- 2.Qf8#
- 1...Rg4
- 2.Qf8#
- 1...Rh4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...c5
- 2.Rcxc5#
- 1...g5
- 2.Bxf5#
- 1...f4!
- 1...Bxd3
- 1.Bf3?
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rb1
- 2.Qf8#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Re4
- 2.Qf8#
- 1...Rf4
- 2.Qf8#
- 1...Rg4
- 2.Qf8#
- 1...Rh4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Bg4#
- 1...c5
- 2.Rcxc5#
- 1...g5!
- 1...b5
- 1.Bf4?
- 1...fxe4
- 2.Qh3#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...g5
- 2.Bxf5#
- 1...Rb1
- 2.Qf8#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...c5
- 2.Rcxc5#
- 1...Rxe4!
- 1...fxe4
- 1.Rcd1?
- threat
- 2.Rd8#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rd4
- 2.Qf8#
- 1...Bd3
- 2.Qa8#
- 1...cxd5!
- threat
- 1.Rc2?
- 1...Rxe4
- 2.Qf8#
- 1...fxe4
- 2.Qh3#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...c5
- 2.Rcxc5#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Qh3#
- 1...g5
- 2.Bxf5#
- 1...Rb1+!
- 1...Rxe4
- 1.Rc4?
- 1...Rxc4
- 2.Qf8#
- 1...Bxc4
- 2.Qa8#
- 1...fxe4
- 2.Qh3#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...c5
- 2.Rcxc5#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Qh3#
- 1...g5
- 2.Bxf5#
- 1...Rb1+!
- 1...Rxc4
- 1.Rd4?
- 1...fxe4
- 2.Qh3#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...c5
- 2.Rxc5#
- 1...Rb1
- 2.Qf8#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Qh3#
- 1...g5
- 2.Bxf5#
- 1...Rxd4!
- 1...fxe4
- 1.Qa5?
- threat
- 2.Rd8#
- 2.Qc7#
- 2.Qd8#
- 1...b5
- 2.Qc7#
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rd4
- 2.Qc7#
- 2.Qd8#
- 1...Rb6!
- threat
- 1.Qxa6?
- threat
- 2.Rxc6#
- 2.Qa8#
- 1...c5
- 2.Rcxc5#
- 2.Qe6#
- 2.Qa8#
- 1...Rb1
- 2.Qa8#
- 1...Ra4
- 2.Rxc6#
- 1...Rc4
- 2.Qa8#
- 1...Rb6
- 2.Qa8#
- 1...bxa6!
- threat
- 1.Kxh2?
- Keys
- 1.Bb1!
- 1...Rxb1
- 2.Qf8#
- 1...b5
- 2.Qxa6#
- 1...b6
- 2.Qxa6#
- 1...Rb2
- 2.Qf8#
- 1...Rb3
- 2.Qf8#
- 1...Ra4
- 2.Qf8#
- 1...Rc4
- 2.Qf8#
- 1...Rd4
- 2.Qf8#
- 1...Re4
- 2.Qf8#
- 1...Rf4
- 2.Qf8#
- 1...Rg4
- 2.Qf8#
- 1...Rh4
- 2.Qf8#
- 1...Rb5
- 2.Qf8#
- 1...Rb6
- 2.Qf8#
- 1...Bf1
- 2.Qa8#
- 1...Be2
- 2.Qa8#
- 1...Bd3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bb5
- 2.Qa8#
- 1...f4
- 2.Qh3#
- 1...c5
- 2.Rcxc5#
- 1...g5
- 2.Bxf5#
- 1...Rxb1
- 1.Bb1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(b);OGATE,P_PINR(A)::QAR(C)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- R(b);OGATE,XB(D)::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(c);OGATEB,XB(D)::QAB(C)
- P(c);OGATEB::QAB(C)
- P(e);OGATEB::R(A),XP(e)
- P(f);N_GUARD::B(D),XP(c)
- P(g);OGATEB::QAB(C),XB(d)
- Tries
- Try
- K(B);P-FLIGHT,XP(a)
- Vars
- R(b);OGATE,XB(D)::QAR(C)
- P(c);OGATEB,XB(D)::QAB(C)
- P(g);OGATEB::QAB(C),XB(d)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(c);OGATEB::QAB(C)
- P(e);OGATEB::R(A),XP(e)
- P(f);N_GUARD::B(D),XP(c)
- Refutation
- R(b);CHECK
- Try
- B(D);
- Vars
- P(g);OGATEB::QAB(C),XB(d)
- R(b);OGATE,P_PINR(A)::QAR(C)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(e);OGATEB::R(A),XP(e)
- Refutation
- P(f);
- Try
- B(D);
- Vars
- B(d);OGATE,XB(D)::QAR2(C)
- P(g);OGATEB::QAB(C),XB(d)
- R(b);OGATE,P_PINR(A)::QAR(C)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- B(d);OGATE::QAR2(C)
- P(e);OGATEB::R(A),XP(e)
- P(f);N_GUARD::B(D),XP(c)
- Refutation
- P(c);
- Try
- B(D);
- Vars
- P(g);OGATEB::QAB(C),XB(d)
- R(b);OGATE,P_PINR(A)::QAR(C)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(c);OGATEB::B(D)
- P(e);OGATEB::R(A),XP(e)
- Refutation
- P(f);
- Try
- B(F);
- Vars
- P(c);OGATEB,XB(D)::QAB(C)
- P(g);OGATEB::QAB(C),XB(d)
- P(f);N_GUARD::B(D),XP(c)
- R(b);OGATE,P_PINR(A)::QAR(C)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(e);OGATEB::R(A),XP(e)
- Refutation
- R(b);XB(D)
- Try
- R(A);N_PINP(e)
- Threat
- R1(E)
- Vars
- P(g);OGATEB::QAB(C),XB(d)
- R(b);OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- Refutation
- P(e);XR(E)
- Try
- R(A);
- Vars
- R(b);OGATE,XB(D)::QAR(C)
- P(c);OGATEB,XB(D)::QAB(C)
- P(g);OGATEB::QAB(C),XB(d)
- P(e);OGATEB::R(A),XP(e)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(c);OGATEB::QAB(C)
- P(f);N_GUARD::B(D),XP(c)
- Refutation
- R(b);CHECK
- Try
- R(A);
- Vars
- R(b);N_SPINP(e),OGATE,XR(A)::QAR(C)
- B(d);N_SPINP(e),OGATE,XR(A)::QAR2(C)
- P(c);OGATEB,XB(D)::QAB(C)
- P(g);OGATEB::QAB(C),XB(d)
- P(e);OGATEB::R(A),XP(e)
- R(b);OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- P(c);OGATEB::QAB(C)
- P(f);N_GUARD::B(D),XP(c)
- Refutation
- R(b);CHECK
- Try
- R(E);
- Vars
- P(c);OGATEB,XB(D)::QAB(C)
- P(g);OGATEB::QAB(C),XB(d)
- P(e);OGATEB::R(A),XP(e)
- R(b);OGATE,P_PINR(A)::QAR(C)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(c);OGATEB::QAB(C)
- P(f);N_GUARD::B(D),XP(c)
- Refutation
- R(b);XR(E)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- P(g);OGATEB::QAB(C),XB(d)
- Refutation
- R(b);
- Try
- Q(C);XB(d)
- Threat
- DUALS(2)
- Vars
- R(b);P_PINR(A)::QAR2(C)
- R(b);::R(A),XP(e)
- R(b);N_SPINP(e),P_SPINP(g)::QAR2(C)
- R(b);::QAR2(C)
- Refutation
- P(g);XQ(C)
- Try
- Actual
- B(D);
- Vars
- R(b);OGATE,P_PINR(A),XB(D)::QAR(C)
- P(g);OGATEB::QAB(C),XB(d)
- R(b);OGATE::QAR(C)
- R(b);N_SPINP(e),OGATE::QAR(C)
- B(d);OGATE::QAR2(C)
- B(d);N_SPINP(e),OGATE::QAR2(C)
- P(c);OGATEB::QAB(C)
- P(e);OGATEB::R(A),XP(e)
- P(f);N_GUARD::B(D),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).