MESON Chess Problem Database
Problem Display
PID: 24880 (8/2P5/6PB/2K1kB1R/1p2NR2/1Pppp3/7q/Q5r1 w - - 0 1)
Boardman, Harry
Brentano's Chess Monthly, 1881
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Bg4#
- 1...Qxf4
- 2.Bg7#
- 1...Qa2
- 2.Bg4#
- 1...Qb2
- 2.Bg4#
- 1...Qc2
- 2.Bg4#
- 1...Qd2
- 2.Bg4#
- 1...Qe2
- 2.Bg4#
- 1...Qf2
- 2.Bg4#
- 1...Qg2
- 2.Bg4#
- 1...Rxa1
- 2.Bh3#
- 1...Rb1
- 2.Bh3#
- 1...Rc1
- 2.Bh3#
- 1...Rd1
- 2.Bh3#
- 1...Re1
- 2.Bh3#
- 1...Rf1
- 2.Bh3#
- 1...Rh1
- 2.Bh3#
- 1...Qg3
- Tries
- 1.Kc4?
- threat
- 2.Qa5#
- 1...Rxa1
- 2.Bh3#
- 1...Qa2
- 2.Bg4#
- 1...Rg5!
- threat
- 1.Qa5?
- threat
- 2.Kc4#
- 1...Qa2
- 2.Bg4#
- 1...Ra1
- 2.Bh3#
- 1...Rg5!
- threat
- 1.Qa6?
- threat
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rg5
- 2.Qd6#
- 1...Qh4
- 2.Qd6#
- 2.Qe6#
- 1...Rxg6!
- threat
- 1.Qa8?
- threat
- 2.Qd5#
- 2.Qe8#
- 2.Qh8#
- 1...Rxg6
- 2.Qd5#
- 1...Qh4
- 2.Qd5#
- 1...Rg5!
- threat
- 1.c8Q?
- threat
- 2.Qe6#
- 2.Qc7#
- 2.Qb8#
- 2.Qe8#
- 2.Qh8#
- 1...Rg5
- 2.Qc7#
- 2.Qb8#
- 1...Qh4
- 2.Qe6#
- 2.Qc7#
- 2.Qb8#
- 1...Rxg6!
- threat
- 1.Kc4?
- Keys
- 1.Sxc3!
- 1...Kf6
- 2.Sd5#
- 1...Qxf4
- 2.Bg7#
- 1...Qxh5
- 2.Sb1#
- 2.Sd1#
- 1...Rxa1
- 2.Bh3#
- 1...Rxg6
- 2.Se2#
- 1...bxc3
- 2.Qxc3#
- 1...Rg5
- 2.Se2#
- 1...Qg3
- 2.Sb1#
- 2.Sd1#
- 2.Bg4#
- 1...Qh1
- 2.Sb1#
- 2.Sd1#
- 1...Qa2
- 2.Bg4#
- 1...Qb2
- 2.Bg4#
- 1...Qc2
- 2.Bg4#
- 1...Qd2
- 2.Bg4#
- 1...Qe2
- 2.Bg4#
- 1...Qf2
- 2.Bg4#
- 1...Qg2
- 2.Bg4#
- 1...Qh3
- 2.Sb1#
- 2.Sd1#
- 1...Qh4
- 2.Sb1#
- 2.Sd1#
- 1...Rb1
- 2.Bh3#
- 1...Rc1
- 2.Bh3#
- 1...Rd1
- 2.Bh3#
- 1...Re1
- 2.Bh3#
- 1...Rf1
- 2.Bh3#
- 1...Rh1
- 2.Bh3#
- 1...Rg2
- 2.Se2#
- 1...Rg3
- 2.Se2#
- 1...Rg4
- 2.Se2#
- 1...d2
- 2.Sb1#
- 2.Sd1#
- 1...e2
- 2.Sb1#
- 2.Sd1#
- 1...Kf6
- 1.Sxc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- Q(b);N_GUARD::R(G)+B(F)
- Q(b);SBLOCK,XR(D)::B(I)
- Q(b);N_GUARD,N_SPINP(c)::R(G)+B(F)
- R(a);N_GUARD,N_SPINP(c),XQ(A)::R(G)+B(F)
- R(a);N_GUARD::R(G)+B(F)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- QAR(A)
- Vars
- R(a);N_GUARD,N_SPINP(c),XQ(A)::R(G)+B(F)
- Q(b);N_GUARD,P_PINP(B)::R(G)+B(F)
- Refutation
- R(a);
- Try
- Q(A);N_PINP(c)
- Threat
- QAR(A)+K(E)
- Vars
- Q(b);N_GUARD::R(G)+B(F)
- R(a);N_GUARD::R(G)+B(F)
- Refutation
- R(a);
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- R(a);::QAB1(A)
- Refutation
- R(a);XP(H)
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- R(a);XP(H)::QAR1(A)
- Q(b);::QAR1(A)
- Refutation
- R(a);
- Try
- P(J);
- Threat
- DUALS(5)
- Refutation
- R(a);XP(H)
- Try
- Actual
- S(C);XP(c)
- Vars
- K(g);S_FLIGHT::QAB(A)+S(C),DCHECK
- Q(b);SBLOCK,XR(D)::B(I)
- R(a);N_GUARD,XQ(A)::R(G)+B(F)
- R(a);N_GUARD,XP(H)::QAB(A)+S(C)
- P(f);OGATE,P_SPINP(f),XS(C)::QAB(A),XP(f)
- R(a);N_GUARD::QAB(A)+S(C)
- Q(b);N_GUARD::R(G)+B(F)
- Q(b);N_GUARD,P_PINS(C)::R(G)+B(F)
- R(a);N_GUARD::R(G)+B(F)
- R(a);N_GUARD,P_PINS(C)::R(G)+B(F)
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).