MESON Chess Problem Database
Problem Display
PID: 140618 (4nNr1/1q6/R4PP1/RB1P1k2/2b2p1p/3p3N/2P3Q1/B6K w - - 0 1)
Hjelle, David
Comm., BCF 135. Ty., 1973-1974
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxd5
- 2.Bd7#
- 1...Qa8
- 2.Bd7#
- 1...Qd7
- 2.Bxd7#
- 1...Qb8
- 2.Bd7#
- 1...Rxg6
- 2.Qxg6#
- 1...Ba2
- 2.Bxd3#
- 1...Bb3
- 2.Bxd3#
- 1...Bxd5
- 2.Bxd3#
- 1...Sxf6
- 2.Rxf6#
- 1...f3
- 2.Qxf3#
- 1...Qxd5
- Tries
- 1.Re6?
- threat
- 2.Qg5#
- 1...Rxg6
- 2.Qxg6#
- 1...Bxd5
- 2.Bxd3#
- 1...Qxd5!
- threat
- 1.cxd3?
- threat
- 2.Qg5#
- 1...Qxd5
- 2.Bd7#
- 1...Rxg6
- 2.Qxg6#
- 1...Bxd3
- 2.Bxd3#
- 1...Bxd5!
- threat
- 1.Re6?
- Keys
- 1.Sf2!
- threat
- 2.Qg4#
- 1...Qxd5
- 2.Bd7#
- 1...Rxg6
- 2.Qxg6#
- 1...Bxd5
- 2.Bxd3#
- 1...Sxf6
- 2.Rxf6#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(f);N_GUARD,P_PINQ(D),XP(H)::B(G)
- Q(f);N_GUARD::B(G)
- Q(f);N_GUARD::B(G),XQ(f)
- R(h);OGATE,XP(K)::QAB1(D),XR(h)
- B(b);OGATE::B(G),XP(a)
- B(b);OGATE,P_PINQ(D),XP(H)::B(G),XP(a)
- S(g);OGATE,XP(J)::R1(I),XS(g)
- P(c);OGATEB::QAR2(D),XP(c)
- Tries
- Try
- R(I);
- Threat
- QAR1(D)
- Vars
- R(h);OGATE,XP(K)::QAB1(D),XR(h)
- B(b);OGATE,P_PINQ(D),XP(H)::B(G),XP(a)
- Refutation
- Q(f);P_PINQ(D),XP(H)
- Try
- P(C);XP(a)
- Threat
- QAR1(D)
- Vars
- Q(f);N_GUARD,P_PINQ(D),XP(H)::B(G)
- R(h);OGATE,XP(K)::QAB1(D),XR(h)
- B(b);OGATE,XP(C)::B(G),XB(b)
- Refutation
- B(b);P_PINQ(D),XP(H)
- Try
- Actual
- S(E);
- Threat
- QAB1(D)
- Vars
- Q(f);N_GUARD,P_PINQ(D),XP(H)::B(G)
- R(h);OGATE,XP(K)::QAB1(D),XR(h)
- B(b);OGATE,P_PINQ(D),XP(H)::B(G),XP(a)
- S(g);OGATE,XP(J)::R1(I),XS(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).