MESON Chess Problem Database
Problem Display
PID: 109077 (7k/2b1p3/KR3pQ1/6P1/p1n5/7N/q6R/B7 w - - 0 1)
Notaro, Rosario
Northwest Chess, 1978
#2
7 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sf4#
- 1...Qxa1
- 2.Sf4#
- 1...Bxb6
- 2.Sf2#
- 1...Bb8
- 2.Rxb8#
- 1...Bd8
- 2.Sf2#
- 1...Sb2
- 2.Sf4#
- 1...Sd2
- 2.Sf4#
- 1...Se5
- 2.Sf2#
- 1...Sd6
- 2.Sf2#
- 1...e5
- 2.Sf2#
- 1...e6
- 2.Bxf6#
- 1...Qb1
- Tries
- 1.Rb8+?
- 1...Bd8
- 2.Sf2#
- 2.Rxd8#
- 1...Bxb8!
- 1...Bd8
- 1.Qxf6+?
- 1...Kh7
- 2.Qg7#
- 2.Qh8#
- 2.Qg6#
- 2.Qf7#
- 1...Kg8
- 2.Qg7#
- 1...exf6!
- 1...Kh7
- 1.gxf6?
- threat
- 2.Qg7#
- 1...exf6
- 2.Bxf6#
- 1...Qg2!
- threat
- 1.Rb8+?
- Keys
- 1.Rxf6!
- threat
- 2.Rf8#
- 1...exf6
- 2.Bxf6#
- 1...Sb2
- 2.Sf4#
- 1...Se5
- 2.Sf2#
- threat
- 1.Rxf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::R(B)+S(C)
- Q(a);N_GUARD,N_SPINP(d),XB(A)::R(B)+S(C)
- B(e);N_GUARD,XR(F)::R(B)+S(C)
- B(e);N_GUARD::R(F),XB(e)
- B(e);N_GUARD::R(B)+S(C)
- S(c);N_SPINP(d),S_CUTQ(a)::R(B)+S(C)
- S(c);S_CUTQ(a)::R(B)+S(C)
- S(c);N_SPINP(d),S_CUTB(e)::R(B)+S(C)
- S(c);S_CUTB(e)::R(B)+S(C)
- P(f);N_SPINP(d),S_CUTB(e)::R(B)+S(C)
- P(f);N_GUARD::B(A),XP(d)
- Tries
- Try
- R(F);CHECK
- Refutation
- B(e);XR(F)
- Try
- Q(G);CHECK,XP(d)
- Vars
- K(g);P-FLIGHT::QAR1(G)
- Refutation
- P(f);P_SPINP(f),XQ(G)
- Try
- P(D);XP(d)
- Threat
- QAB1(G)
- Vars
- P(f);OGATE,P_SPINP(f),XP(D)::B(A),XP(f)
- Refutation
- Q(a);
- Try
- Actual
- R(F);XP(d)
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(f);OGATE,P_SPINP(f),XR(F)::B(A),XP(f)
- S(c);S_CUTQ(a)::R(B)+S(C)
- S(c);S_CUTB(e)::R(B)+S(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).