MESON Chess Problem Database
Problem Display
PID: 21479 (2B3R1/8/5N1B/6rp/6rb/R3ppkb/Q5p1/2N3K1 w - - 0 1)
Sheppard, Charles William
3rd Prize, Good Companions (May), 1919
#2
8 + 9
| 3132 | The Good Companion Two-Mover | 1922 |
| 3391 | Het Half Pin Thema | 1924 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 1...Ra5
- 2.Se4#
- 1...Rb5
- 2.Se4#
- 1...Rc5
- 2.Se4#
- 1...Rd5
- 2.Se4#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...Rxg8
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...f2+
- 2.Qxf2#
- 1...Ra4
- Tries
- 1.Bxg5?
- threat
- 2.Sxh5#
- 1...f2+
- 2.Qxf2#
- 1...Bxg5!
- threat
- 1.Bf5?
- 1...f2+
- 2.Qxf2#
- 1...Rxf5
- 2.Se4#
- 1...Rxg8
- 2.Sxh5#
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...Kf4!
- 1...f2+
- 1.Qc4?
- 1...Rxc4
- 2.Sxh5#
- 1...Rxg8
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Re5
- 2.Bf4#
- 2.Qf4#
- 1...Rf4
- 2.Sxh5#
- 1...Ra5
- 2.Se4#
- 2.Bf4#
- 2.Qf4#
- 1...Rb5
- 2.Se4#
- 2.Bf4#
- 2.Qf4#
- 1...Rc5
- 2.Se4#
- 2.Bf4#
- 2.Qf4#
- 1...Rd5
- 2.Se4#
- 2.Bf4#
- 2.Qf4#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...f2+!
- 1...Rxc4
- 1.Qd5?
- 1...Kf4
- 2.Sxh5#
- 2.Qd6#
- 1...Rxd5
- 2.Se4#
- 1...Rxg8
- 2.Sxh5#
- 1...Re5
- 2.Qxe5#
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 2.Rxf3#
- 2.Qxf3#
- 1...f2+!
- 1...Kf4
- 1.Qe6?
- 1...Kf4
- 2.Sxh5#
- 2.Qd6#
- 1...Rxg8
- 2.Sxh5#
- 1...Re5
- 2.Qxe5#
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 2.Qxh3#
- 1...Ra5
- 2.Se4#
- 1...Rb5
- 2.Se4#
- 1...Rc5
- 2.Se4#
- 1...Rd5
- 2.Se4#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...f2+!
- 1...Kf4
- 1.Qc2?
- 1...f2+
- 2.Qxf2#
- 1...Kf4
- 2.Qc7#
- 1...Rxg8
- 2.Sxh5#
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 1...Ra5
- 2.Se4#
- 1...Rb5
- 2.Se4#
- 1...Rc5
- 2.Se4#
- 1...Rd5
- 2.Se4#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...Re5!
- 1...f2+
- 1.Qd2?
- 1...f2+
- 2.Qxf2#
- 1...Kf4
- 2.Qd6#
- 1...Rxg8
- 2.Sxh5#
- 1...exd2
- 2.Se2#
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 1...Ra5
- 2.Se4#
- 1...Rb5
- 2.Se4#
- 1...Rc5
- 2.Se4#
- 1...Rd5
- 2.Se4#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...Re5!
- 1...f2+
- 1.Qf2+?
- 1...Kf4
- 2.Sd3#
- 1...exf2+!
- 1...Kf4
- 1.Bxg5?
- Keys
- 1.Qb2!
- 1...f2+
- 2.Qxf2#
- 1...Kf4
- 2.Qb8#
- 1...Rxg8
- 2.Sxh5#
- 1...Re5
- 2.Qxe5#
- 1...Ra4
- 2.Sxh5#
- 1...Rb4
- 2.Sxh5#
- 1...Rc4
- 2.Sxh5#
- 1...Rd4
- 2.Sxh5#
- 1...Re4
- 2.Sxh5#
- 1...Rf4
- 2.Sxh5#
- 1...Ra5
- 2.Se4#
- 1...Rb5
- 2.Se4#
- 1...Rc5
- 2.Se4#
- 1...Rd5
- 2.Se4#
- 1...Rf5
- 2.Se4#
- 1...Rg6
- 2.Sxh5#
- 1...Rg7
- 2.Sxh5#
- 1...e2
- 2.Sxe2#
- 1...f2+
- 1.Qb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(b)
- P(c);CHECK,P_SPINP(b)::QAB1(C),XP(c)
- Tries
- Try
- B(F);XR(h)
- Threat
- S(E),XP(i)
- Vars
- P(c);CHECK,P_SPINP(b)::QAB1(C),XP(c)
- Refutation
- B(g);XB(F)
- Try
- B(G);
- Vars
- P(c);CHECK,P_SPINP(b)::QAB1(C),XP(c)
- R(h);P_SPINR(f),XB(G)::S(E)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);N_GUARD::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(b)
- Refutation
- K(d);P_SPINR(h),S_FLIGHT
- Try
- Q(C);
- Vars
- R(f);P_SPINR(h),XQ(C)::S(E),XP(i)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(b)
- Refutation
- P(c);CHECK,P_SPINP(b)
- Try
- Q(C);
- Vars
- R(h);P_SPINR(f),XQ(C)::S(E)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- R(h);N_GUARD,P_SPINR(f)::QAB(C),XR(h)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- Refutation
- P(c);CHECK,P_SPINP(b)
- Try
- Q(C);
- Vars
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- R(h);N_GUARD,P_SPINR(f)::QAB(C),XR(h)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(b)
- Refutation
- P(c);CHECK,P_SPINP(b)
- Try
- Q(C);
- Vars
- P(c);CHECK,P_SPINP(b)::QAB1(C),XP(c)
- K(d);P_SPINR(h),S_FLIGHT::QAB(C)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(b)
- Refutation
- R(h);P_SPINR(f)
- Try
- Q(C);
- Vars
- P(c);CHECK,P_SPINP(b)::QAB1(C),XP(c)
- K(d);P_SPINP(b),P_SPINR(h),S_FLIGHT::QAB(C)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- P(b);P_SPINP(c),XQ(C)::S(A)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(b)
- Refutation
- R(h);P_SPINR(f)
- Try
- Q(C);CHECK
- Vars
- K(d);P_SPINP(c),P_SPINR(h),S_FLIGHT::S(A)
- Refutation
- P(b);CHECK,P_SPINP(c),XQ(C)
- Try
- Actual
- Q(C);
- Vars
- P(c);CHECK,P_SPINP(b)::QAB1(C),XP(c)
- K(d);P_SPINR(h),S_FLIGHT::QAB(C)
- R(h);N_GUARD,XR(H)::S(E),XP(i)
- R(h);N_GUARD,P_SPINR(f)::QAB(C),XR(h)
- R(f);P_SPINR(h)::S(E),XP(i)
- R(h);P_SPINR(f)::S(E)
- R(h);N_GUARD::S(E),XP(i)
- P(b);P_SPINP(c)::S(A),XP(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).