MESON Chess Problem Database
Problem Display
PID: 227625 (8/3p4/3Qp3/1N6/p2Np1P1/Pp2k2p/1p1R3P/1KbB4 w - - 0 1)
Grunfeld, Max
3rd Comm., Revista de Sah TT, 1926
#2
9 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxd2
- 2.Sc2#
- 1...Bxd2
- 2.Qg3#
- 1...e5
- 2.Qh6#
- 1...Kxd2
- Tries
- 1.Sxb3?
- threat
- 2.Qg3#
- 1...e5
- 2.Qh6#
- 1...axb3!
- threat
- 1.Sc6?
- 1...Bxd2
- 2.Qg3#
- 1...e5
- 2.Qh6#
- 1...dxc6!
- 1...Bxd2
- 1.Sxe6?
- threat
- 2.Qf4#
- 2.Qd4#
- 1...Bxd2
- 2.Qg3#
- 2.Qd4#
- 1...dxe6!
- threat
- 1.Qe5?
- threat
- 2.Qg5#
- 1...Bxd2
- 2.Qg3#
- 1...Kxd2!
- threat
- 1.g5?
- 1...Kxd2
- 2.Sc2#
- 1...Bxd2
- 2.Qg3#
- 1...e5!
- 1...Kxd2
- 1.Sxb3?
- Keys
- 1.Sf3!
- 1...Bxd2
- 2.Qxd2#
- 1...exf3
- 2.Qd4#
- 1...e5
- 2.Qh6#
- 1...Bxd2
- 1.Sf3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(d);S_FLIGHT,XR(C)::QAR(I)+S(F)
- B(a);SBLOCK,XR(C)::QAR2(I)
- P(h);OGATE::QAB(I)
- Tries
- Try
- S(F);XP(c)
- Threat
- QAR2(I)
- Vars
- P(h);OGATE::QAB(I)
- Refutation
- P(f);XS(F)
- Try
- S(F);
- Vars
- B(a);SBLOCK,XR(C)::QAR2(I)
- P(h);OGATE::QAB(I)
- Refutation
- P(i);XS(F)
- Try
- S(F);XP(h)
- Threat
- DUALS(2)
- Refutation
- P(i);XS(F)
- Try
- Q(I);P_PINP(g)
- Threat
- QAB(I)
- Vars
- B(a);SBLOCK,XR(C)::QAR2(I)
- Refutation
- K(d);N_SPINP(g),S_FLIGHT,XR(C)
- Try
- P(G);
- Vars
- K(d);S_FLIGHT,XR(C)::QAR(I)+S(F)
- B(a);SBLOCK,XR(C)::QAR2(I)
- Refutation
- P(h);
- Try
- Actual
- S(F);
- Vars
- B(a);OGATE,XR(C)::QAB1(I),XB(a)
- P(g);XS(F)::QAB1(I)
- P(h);OGATE::QAB(I)
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).