MESON Chess Problem Database
Problem Display
PID: 268095 (8/K6n/2P4N/Q1ppPR1N/2Ppk1p1/8/3P1b2/1b3B2 w - - 0 1)
Pereira, Alvaro
The Problemist Supplement, 2022
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Bd3
- 2.Bg2#
- 1...Bg1
- 2.Sg3#
- 1...Be3
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...Sg5
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sf8
- 2.Sf6#
- 1...Bd3
- Tries
- 1.Qc3?
- threat
- 2.Bg2#
- 1...Sg5
- 2.Sf6#
- 1...dxc3!
- threat
- 1.Qc7?
- threat
- 2.Rf4#
- 1...Be3
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...dxc4!
- threat
- 1.Qd8?
- threat
- 2.Qxd5#
- 1...Sf6
- 2.Sxf6#
- 1...dxc4!
- threat
- 1.Qa3?
- threat
- 2.Bg2#
- 1...Sg5
- 2.Sf6#
- 1...d3!
- threat
- 1.d3+?
- 1...Ke3
- 2.Sxg4#
- 1...Bxd3!
- 1...Ke3
- 1.Qc3?
- Keys
- 1.Qxc5!
- threat
- 2.Qxd5#
- 1...dxc4
- 2.Rf4#
- 1...Sf6
- 2.Sxf6#
- 1...d3
- 2.Bg2#
- threat
- 1.Qxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(a);SBLOCK::B(A)
- B(b);N_GUARD::S(G)
- B(b);N_GUARD::S(G),XB(b)
- S(h);N_GUARD::S(G)
- S(h);N_GUARD::S(G),XS(h)
- Tries
- Try
- Q(D);
- Threat
- B(A)
- Vars
- S(h);N_GUARD::S(G)
- Refutation
- P(c);XQ(D)
- Try
- Q(D);
- Threat
- R1(F)
- Vars
- B(b);N_GUARD::S(G)
- B(b);N_GUARD::S(G),XB(b)
- Refutation
- P(g);XP(C)
- Try
- Q(D);
- Threat
- QAB1(D),XP(g)
- Vars
- S(h);N_GUARD::S(G),XS(h)
- Refutation
- P(g);XP(C)
- Try
- Q(D);
- Threat
- B(A)
- Vars
- S(h);N_GUARD::S(G)
- Refutation
- P(c);
- Try
- P(B);CHECK
- Vars
- K(d);N_GUARD,P-FLIGHT,S_CUTB(a)::S(I),XP(e)
- Refutation
- B(a);XP(B)
- Try
- Actual
- Q(D);XP(f)
- Threat
- QAB1(D),XP(g)
- Vars
- P(g);XP(C)::R1(F)
- S(h);N_GUARD::S(G),XS(h)
- P(c);P_PINQ(D),SBLOCK::B(A)
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).