MESON Chess Problem Database
Problem Display
PID: 228894 (5n2/4R3/1Bp5/2Pk2r1/p1N1r3/1B2Q3/3P2b1/3RK3 w - - 0 1)
Cristoffanini, Guido
Chess Amateur (The), 1926
#2
9 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3+
- 2.dxe3#
- 1...Rxc4
- 2.Qd3#
- 1...Rd4
- 2.Qxg5#
- 1...Bf1
- 2.Qxe4#
- 1...Bh3
- 2.Qxe4#
- 1...Se6
- 2.Rd7#
- 1...Rxe3+
- Tries
- 1.Sb2+?
- 1...Rc4
- 2.Bxc4#
- 2.Qd3#
- 1...axb3!
- 1...Rc4
- 1.Sa3+?
- 1...Rc4
- 2.Bxc4#
- 2.Qd3#
- 1...axb3!
- 1...Rc4
- 1.Sa5+?
- 1...Rc4
- 2.Bxc4#
- 2.Qd3#
- 1...axb3!
- 1...Rc4
- 1.Se5+?
- 1...Rc4
- 2.Bxc4#
- 2.Qd3#
- 1...axb3!
- 1...Rc4
- 1.Sd6+?
- 1...Rc4
- 2.Bxc4#
- 2.Qd3#
- 1...axb3!
- 1...Rc4
- 1.Sb2+?
- Keys
- 1.Ba7!
- threat
- 2.Sb6#
- 1...Rxe3+
- 2.dxe3#
- 1...Rxc4
- 2.Qd3#
- 1...Rd4
- 2.Qxg5#
- 1...Se6
- 2.Rd7#
- threat
- 1.Ba7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(c);CHECK,OGATE,XQ(E)::R(A)+P(C),XR(c)
- R(c);N_PINQ(E),P_SPINR(c),XS(F)::QAR2(E)
- R(c);N_PINQ(E),SBLOCK::QAR(E),XR(e)
- B(a);N_GUARD::QAB1(E),XR(c)
- S(g);N_GUARD,SBLOCK::R(I)
- Tries
- Try
- S(F);CHECK
- Refutation
- P(b);XB(D)
- Try
- S(F);CHECK
- Refutation
- P(b);XB(D)
- Try
- S(F);CHECK
- Refutation
- P(b);XB(D)
- Try
- S(F);CHECK
- Refutation
- P(b);XB(D)
- Try
- S(F);CHECK
- Refutation
- P(b);XB(D)
- Try
- Actual
- B(H);
- Threat
- B(D)+S(F),DCHECK
- Vars
- R(c);CHECK,OGATE,XQ(E)::R(A)+P(C),XR(c)
- R(c);N_PINQ(E),P_SPINR(c),XS(F)::QAR2(E)
- R(c);N_PINQ(E),SBLOCK::QAR(E),XR(e)
- S(g);N_GUARD,SBLOCK::R(I)
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).