MESON Chess Problem Database
Problem Display
PID: 56089 (8/5Q2/8/6pN/3Kp2p/p1P1R2P/4Bnkp/4R2b w - - 0 1)
Mansfield, Comins
Shaki, 1981
#2
8 + 8
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sxh3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...Sd1
- Tries
- 1.Kc4?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Kd5?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Bd1?
- 1...Sxd1
- 2.Qf1#
- 1...Sxh3
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxd1
- 1.Bd3?
- 1...Sxd3
- 2.Qf1#
- 1...Sxh3
- 2.Bxe4#
- 2.Qf1#
- 1...exd3
- 2.Qf3#
- 1...Sd1
- 2.Bxe4#
- 2.Qf1#
- 1...Sg4
- 2.Bxe4#
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxd3
- 1.Bf3+?
- 1...exf3
- 2.Qxf3#
- 1...Kxh3!
- 1...exf3
- 1.Bc4?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Bg4?
- 1...Sxh3
- 2.Bxh3#
- 2.Qf1#
- 1...Sxg4
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...a2!
- 1...Sxh3
- 1.Bb5?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Ba6?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Ra1?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Rb1?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Rc1?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Rd1?
- 1...Sxd1
- 2.Qf1#
- 1...Sxh3
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxd1
- 1.Rd3?
- 1...Sxd3
- 2.Qf1#
- 1...Sxh3
- 2.Qf1#
- 1...exd3
- 2.Qf3#
- 1...e3
- 2.Qf3#
- 1...Sd1
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxd3
- 1.Qf5?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Qf6?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Qf8?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.c4?
- 1...Sxh3
- 2.Qf1#
- 1...Sd1
- 2.Qf1#
- 1...Sd3
- 2.Qf1#
- 1...Sg4
- 2.Qf1#
- 1...g4
- 2.Sf4#
- 1...a2!
- 1...Sxh3
- 1.Kc4?
- Keys
- 1.Qa2!
- 1...Sxh3
- 2.Bf3#
- 1...Sd1
- 2.Bxd1#
- 1...Sd3
- 2.Bxd3#
- 1...Sg4
- 2.Bxg4#
- 1...g4
- 2.Sf4#
- 1...Sxh3
- 1.Qa2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(b);OGATE::QAB1(H)
- S(b);OGATE,XP(E)::QAB1(H)
- P(h);N_GUARD::S(G)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- K(F);P-FLIGHT
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- B(B);
- Vars
- S(b);OGATE,XB(B)::QAB1(H)
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- B(B);
- Vars
- S(b);OGATE,XB(B)::QAB1(H)
- P(f);N_GUARD,XB(B)::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- B(B);CHECK
- Vars
- P(f);OGATE,XB(B)::QAB1(H),XP(f)
- Refutation
- K(c);S_FLIGHT,XP(E)
- Try
- B(B);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- B(B);
- Vars
- S(b);OGATE,XB(B)::QAB1(H)
- S(b);OGATE::QAB1(H)
- Refutation
- P(e);
- Try
- B(B);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- B(B);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- S(b);OGATE,XR(A)::QAB1(H)
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- S(b);OGATE,XR(D)::QAB1(H)
- S(b);OGATE,XP(E)::QAB1(H)
- P(f);N_GUARD,XR(D)::QAB1(H)
- P(f);N_GUARD::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- Q(H);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- Q(H);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- Q(H);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- P(C);
- Vars
- S(b);OGATE,XP(E)::QAB1(H)
- S(b);OGATE::QAB1(H)
- P(h);N_GUARD::S(G)
- Refutation
- P(e);
- Try
- Actual
- Q(H);
- Vars
- S(b);SBLOCK,XP(E)::QAR(H)+B(B),DCHECK
- S(b);OGATEB::QAR(H)+B(B),XS(b)
- P(h);N_GUARD::S(G)
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).