MESON Chess Problem Database
Problem Display
PID: 174464 (2N1q3/2n1P1p1/R5r1/1P1kbp2/1P1p3r/1Kp2N1p/2Q4p/7B w - - 0 1)
Vaughan, Colin V
Busmen's Chess Review, 1971
#2
9 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxe7
- 2.Sxe7#
- 1...Rh5
- 2.Sg5#
- 1...Rhh6
- 2.Sg5#
- 1...Rh7
- 2.Sg5#
- 1...Rh8
- 2.Sg5#
- 1...Re6
- 2.Sxh4#
- 1...Rf6
- 2.Sxh4#
- 1...Rgh6
- 2.Sxh4#
- 1...Bf6
- 2.Rd6#
- 1...Qxe7
- Tries
- 1.Qxf5?
- threat
- 2.Qxe5#
- 1...Qxe7
- 2.Sxe7#
- 1...Rh5
- 2.Sg5#
- 1...Rg5
- 2.Rd6#
- 1...Re6
- 2.Sxh4#
- 1...Re4!
- threat
- 1.Qxf5?
- Keys
- 1.Qe2!
- threat
- 2.Qxe5#
- 1...Qxe7
- 2.Sxe7#
- 1...Re4
- 2.Qc4#
- 1...Re6
- 2.Sxh4#
- 1...Bg3
- 2.Sxh4#
- 1...Bf4
- 2.Sg5#
- 1...Bd6
- 2.Sb6#
- 1...Bf6
- 2.Rd6#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- Q(l);XP(H)::S(I),XQ(l)
- R(e);N_GUARD::B(A)+S(D)
- R(i);N_GUARD::B(A)+S(D),XR(e)
- B(g);N_GUARD,S_CUTR(i)::R1(G)
- Tries
- Try
- Q(B);P_PINB(g),XP(h)
- Threat
- QAR1(B),XB(g)
- Vars
- Q(l);XP(H)::S(I),XQ(l)
- R(e);N_GUARD::B(A)+S(D)
- R(i);N_GUARD::R1(G)
- R(i);N_GUARD::B(A)+S(D),XR(e)
- Refutation
- R(e);
- Try
- Actual
- Q(B);
- Threat
- QAR1(B),XB(g)
- Vars
- Q(l);XP(H)::S(I),XQ(l)
- R(e);SBLOCK::QAB1(B)
- R(i);N_GUARD::B(A)+S(D),XR(e)
- B(g);S_CUTR(i)::B(A)+S(D),XR(e)
- B(g);S_CUTR(e)::B(A)+S(D)
- B(g);SBLOCK,S_CUTR(i)::S(I)
- B(g);N_GUARD,S_CUTR(i)::R1(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).