MESON Chess Problem Database
Problem Display
PID: 32395 (Q4R2/8/5qp1/5b2/4p2p/3r3B/4R1Pn/4BkNK w - - 0 1)
Schuller, EG
De Problemist, 1928
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.g3#
- 1...Qb2
- 2.g3#
- 1...Qc3
- 2.g3#
- 1...Qd4
- 2.g3#
- 1...Qe5
- 2.g3#
- 1...Qg5
- 2.g3#
- 1...Qe7
- 2.g3#
- 1...Qg7
- 2.g3#
- 1...Qd8
- 2.g3#
- 1...Qh8
- 2.g3#
- 1...Qa6
- 2.g3#
- 1...Qb6
- 2.g3#
- 1...Qc6
- 2.g3#
- 1...Qd6
- 2.g3#
- 1...Qe6
- 2.g3#
- 1...Rd1
- 2.g4#
- 1...Rd2
- 2.g4#
- 1...Rd4
- 2.g4#
- 1...Rd5
- 2.g4#
- 1...Rd6
- 2.g4#
- 1...Rd7
- 2.g4#
- 1...Rd8
- 2.g4#
- 1...Sf3
- 2.g4#
- 1...Sg4
- 2.g3#
- 1...e3
- 2.g4#
- 1...Qa1
- Keys
- 1.Qa1!
- threat
- 2.Rf2#
- 1...Qxa1
- 2.g3#
- 1...Bxh3
- 2.Bd2#
- 1...Qb2
- 2.g3#
- 1...Qd4
- 2.g3#
- 1...Qb6
- 2.g3#
- 1...Rd1
- 2.g4#
- 1...Rd2
- 2.g4#
- 1...Rf3
- 2.Bc3#
- 1...Bg4
- 2.Bd2#
- 1...Be6
- 2.Bd2#
- 1...Bd7
- 2.Bd2#
- 1...Bc8
- 2.Bd2#
- 1...Sg4
- 2.g3#
- 1...e3
- 2.g4#
- threat
- 1.Qa1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 17
- Sets
- Q(g);P_SPINB(f)::B(F)+P(E)
- R(c);N_GUARD::B(F)+P(E)
- S(b);S_CUTR(c)::B(F)+P(E)
- S(b);S_CUTB(f)::B(F)+P(E)
- P(d);S_CUTR(c)::B(F)+P(E)
- Actual
- Q(G);
- Threat
- R1(D)
- Vars
- Q(g);P_SPINB(f),XQ(G)::B(F)+P(E)
- B(f);P_SPINQ(g),XB(F)::QAR(G)+B(A)
- Q(g);P_SPINB(f)::B(F)+P(E)
- R(c);N_GUARD::B(F)+P(E)
- R(c);N_GUARD::QAR(G)+B(A)
- B(f);P_SPINQ(g)::QAR(G)+B(A)
- S(b);S_CUTB(f)::B(F)+P(E)
- P(d);S_CUTR(c)::B(F)+P(E)
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).