MESON Chess Problem Database
Problem Display
PID: 83758 (5BB1/1n4p1/r3P1K1/1P1k1N2/1n1p1R2/QPb2P2/2b2N2/4R3 w - - 0 1)
Ellerman, Arnoldo
La Settimana Enigmistica, 1933
#2
12 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxe6+
- 2.Bxe6#
- 1...Bxb3
- 2.Qxb3#
- 1...Bxf5+
- 2.Rxf5#
- 1...Bd2
- 2.Rxd4#
- 1...Sd3
- 2.Se7#
- 1...Sc6
- 2.e7#
- 1...Rxe6+
- Tries
- 1.Sd3?
- threat
- 2.Re5#
- 1...Rxe6+
- 2.Bxe6#
- 1...Bxb3
- 2.Qxb3#
- 1...Bxe1
- 2.Rxd4#
- 1...Sxd3
- 2.Se7#
- 1...Sc6
- 2.e7#
- 1...Bxd3!
- threat
- 1.Sd3?
- Keys
- 1.Sg4!
- threat
- 2.Re5#
- 1...Rxe6+
- 2.Bxe6#
- 1...Bxf5+
- 2.Rxf5#
- 1...Bxb3
- 2.Qxb3#
- 1...Bxe1
- 2.Rxd4#
- 1...Be4
- 2.fxe4#
- 1...Sd3
- 2.Se7#
- 1...Sc6
- 2.e7#
- 1...d3
- 2.Sfe3#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(f);CHECK,OGATE,P_SPINR(f),XP(I)::B(L),XR(f)
- B(a);N_PINS(H),OGATE,XP(D)::QAB(C),XB(a)
- B(a);CHECK,OGATE,XS(H)::R(F),XB(a)
- B(b);N_GUARD::R1(F),XP(d)
- S(c);N_PINS(H)::S(H)
- S(c);N_PINP(I)::B(L)+P(I)
- Tries
- Try
- S(B);N_SPINS(H)
- Threat
- R1(A)
- Vars
- R(f);CHECK,OGATE,P_SPINR(f),XP(I)::B(L),XR(f)
- B(a);OGATE,XP(D)::QAB(C),XB(a)
- B(b);N_GUARD,XR(A)::R1(F),XP(d)
- S(c);XS(B)::S(H)
- S(c);N_PINP(I)::B(L)+P(I)
- Refutation
- B(a);P_PINS(H),XS(B)
- Try
- Actual
- S(B);
- Threat
- R1(A)
- Vars
- R(f);CHECK,OGATE,P_SPINR(f),XP(I)::B(L),XR(f)
- B(a);CHECK,OGATE,XS(H)::R(F),XB(a)
- B(a);N_PINS(H),OGATE,XP(D)::QAB(C),XB(a)
- B(b);N_GUARD,XR(A)::R1(F),XP(d)
- B(a);OGATE::P(E),XB(a)
- S(c);N_PINS(H)::S(H)
- S(c);N_PINP(I)::B(L)+P(I)
- P(d);N_PINS(H)::S(H)
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).