MESON Chess Problem Database
Problem Display
PID: 140569 (NB6/p2p3Q/Pp2bp1b/3k1n2/3P4/2R1p3/1p2P3/1B1R2K1 w - - 0 1)
Thomson, Robert Gavin
Four-Leaved Shamrock, 1916
#2
10 + 10
| 56 | The Problemist | 1943 |
SOLUTION
- SOUND
- Sets
- 1...Bf7
- 2.Qxf5#
- 2.Qxf7#
- 1...Bg8
- 2.Qxf5#
- 2.Qxg8#
- 1...Bf4
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bg7
- 2.Qh1#
- 1...Bf8
- 2.Qh1#
- 1...Sg3
- 2.Ba2#
- 1...Sxd4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sh4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sd6
- 2.Sc7#
- 1...Se7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sg7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...d6
- 2.Sc7#
- 2.Qb7#
- 1...Bf7
- Tries
- 1.Kf1?
- 1...Sxd4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Bf7
- 2.Qxf5#
- 2.Qxf7#
- 1...Bg8
- 2.Qxf5#
- 2.Qxg8#
- 1...Bf4
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bg7
- 2.Qh1#
- 1...Bf8
- 2.Qh1#
- 1...Sh4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sd6
- 2.Sc7#
- 1...Se7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sg7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...d6
- 2.Sc7#
- 2.Qb7#
- 1...Sg3+!
- 1...Sxd4
- 1.Be5?
- threat
- 2.Sc7#
- 1...Sxd4
- 2.Qe4#
- 1...fxe5!
- threat
- 1.Rd2?
- 1...Sxd4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Bf7
- 2.Qxf5#
- 2.Qxf7#
- 1...Bg8
- 2.Qxf5#
- 2.Qxg8#
- 1...Bf4
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bg7
- 2.Qh1#
- 1...Bf8
- 2.Qh1#
- 1...Sg3
- 2.Ba2#
- 1...Sh4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sd6
- 2.Sc7#
- 1...Se7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sg7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...d6
- 2.Sc7#
- 2.Qb7#
- 1...exd2!
- 1...Sxd4
- 1.Rc8?
- 1...Sxd4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Bf7
- 2.Qxf5#
- 2.Qxf7#
- 1...Bg8
- 2.Qxf5#
- 2.Qxg8#
- 1...Bf4
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bg7
- 2.Qh1#
- 1...Bf8
- 2.Qh1#
- 1...Sg3
- 2.Ba2#
- 1...Sh4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Se7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sg7
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...b5
- 2.Rc5#
- 1...d6
- 2.Qb7#
- 1...Sd6!
- 1...Sxd4
- 1.Qg6?
- threat
- 2.Qg2#
- 1...Bf7
- 2.Qxf5#
- 2.Qxf7#
- 1...Bg8
- 2.Qxf5#
- 2.Qxg8#
- 1...Sg3
- 2.Ba2#
- 1...Sh4
- 2.Ba2#
- 2.Be4#
- 2.Qe4#
- 1...Sd6
- 2.Sc7#
- 1...Bg5!
- threat
- 1.Qxd7+?
- 1...Sd6
- 2.Sc7#
- 2.Qc6#
- 2.Qxd6#
- 1...Bxd7!
- 1...Sd6
- 1.Kf1?
- Keys
- 1.Rc2!
- 1...Ke4
- 2.Rc5#
- 1...Sxd4
- 2.Ba2#
- 1...Bf7
- 2.Qxf5#
- 1...Bg8
- 2.Qxf5#
- 1...Bf4
- 2.Qh1#
- 1...Bg5
- 2.Qh1#
- 1...Bg7
- 2.Qh1#
- 1...Bf8
- 2.Qh1#
- 1...Sg3
- 2.Ba2#
- 1...Sh4
- 2.Ba2#
- 1...Sd6
- 2.Sc7#
- 1...Se7
- 2.Ba2#
- 1...Sg7
- 2.Ba2#
- 1...b5
- 2.Rc5#
- 1...d6
- 2.Qb7#
- 1...Ke4
- 1.Rc2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- B(h);OGATE::QAB(H)
- S(d);::B(A)
- S(d);SBLOCK::S(I)
- P(e);N_GUARD::R1(E)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- B(h);OGATE::QAB(H)
- S(d);SBLOCK::S(I)
- P(e);N_GUARD::R1(E)
- Refutation
- S(d);CHECK
- Try
- B(J);
- Threat
- S(I)
- Vars
- S(d);OGATE,P_SPINS(d),XP(F)::QAB1(H)
- Refutation
- P(g);XB(J)
- Try
- R(B);
- Vars
- B(h);OGATE::QAB(H)
- S(d);::B(A)
- S(d);SBLOCK::S(I)
- P(e);N_GUARD::R1(E)
- Refutation
- P(b);XR(B)
- Try
- R(E);
- Vars
- B(h);OGATE::QAB(H)
- S(d);::B(A)
- P(e);N_GUARD::R1(E)
- P(j);OGATE::QAB(H)
- Refutation
- S(d);
- Try
- Q(H);
- Threat
- QAB(H)
- Vars
- S(d);::B(A)
- S(d);SBLOCK::S(I)
- Refutation
- B(h);
- Try
- Q(H);CHECK,XP(j)
- Refutation
- B(f);XQ(H)
- Try
- Actual
- R(E);
- Vars
- K(c);P_SPINS(d),S_FLIGHT::B(A)+R(E)
- S(d);P_SPINS(d),XP(F)::B(A)
- B(f);N_GUARD::QAR2(H),XS(d)
- B(h);OGATE::QAB(H)
- S(d);::B(A)
- S(d);SBLOCK::S(I)
- P(e);N_GUARD::R1(E)
- P(j);OGATE::QAB(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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