MESON Chess Problem Database
Problem Display
PID: 59214 (3N1rQB/3p1q1n/2rp4/3k4/1P3R2/2p3p1/p3R3/4bK2 w - - 0 1)
Ellerman, Arnoldo
1st HM., Brisbane Courier, 1921-1922
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Rf5#
- 1...Rxd8
- 2.Qxf7#
- 1...Sf6
- 2.Qg5#
- 1...g2+
- 2.Qxg2#
- 1...Rc4
- Tries
- 1.Kg1?
- threat
- 2.Rd4#
- 1...Rc4
- 2.Rf5#
- 1...Sf6
- 2.Qg5#
- 1...Bf2+!
- threat
- 1.Kg2?
- threat
- 2.Rd4#
- 1...Rc4
- 2.Rf5#
- 1...Sf6
- 2.Qg5#
- 1...Bf2!
- threat
- 1.Bf6?
- threat
- 2.Rd4#
- 1...g2+
- 2.Qxg2#
- 1...Sxf6
- 2.Qg5#
- 1...Rc4
- 2.Rf5#
- 1...Bf2!
- threat
- 1.Kg1?
- Keys
- 1.Re3!
- threat
- 2.Rd3#
- 1...g2+
- 2.Qxg2#
- 1...Rxd8
- 2.Qxf7#
- 1...Bf2
- 2.Rd4#
- 1...Rc4
- 2.Rf5#
- 1...Sf6
- 2.Qg5#
- threat
- 1.Re3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);SBLOCK::R(D)
- R(k);N_GUARD,XS(E)::QAB(F),XQ(i)
- S(j);N_GUARD,N_PINR(D)::QAR(F)
- P(d);CHECK,OGATE::QAB(F),XP(d)
- Tries
- Try
- K(A);N_SPINR(D),P-FLIGHT
- Threat
- R1(D)
- Vars
- R(f);SBLOCK::R(D)
- S(j);N_GUARD::QAR(F)
- Refutation
- B(a);CHECK
- Try
- K(A);N_SPINR(D),S_FLIGHT
- Threat
- R1(D)
- Vars
- R(f);SBLOCK::R(D)
- S(j);N_GUARD::QAR(F)
- Refutation
- B(a);
- Try
- B(G);N_SPINR(D)
- Threat
- R1(D)
- Vars
- P(d);CHECK,OGATE::QAB(F),XP(d)
- S(j);N_GUARD,XB(G)::QAR(F)
- R(f);SBLOCK::R(D)
- Refutation
- B(a);
- Try
- Actual
- R(B);
- Threat
- R(B)
- Vars
- P(d);CHECK,OGATE::QAB(F),XP(d)
- R(k);N_GUARD,XS(E)::QAB(F),XQ(i)
- B(a);N_PINR(D)::R1(D)
- R(f);SBLOCK::R(D)
- S(j);N_GUARD,N_PINR(D)::QAR(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).