MESON Chess Problem Database
Problem Display
PID: 229025 (8/3p1QpN/1r1p1p2/R1bb1k2/1pN2n1P/1K1Pp1rP/6P1/BB3R2 w - - 0 1)
Mari, Alberto
El Ajedrez Argentino, 1926
#2
12 + 12
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.g4#
- 1...Rg6
- 2.Qxd5#
- 1...Bf3
- 2.Sxe3#
- 1...Bxc4+
- 2.dxc4#
- 1...Be4
- 2.dxe4#
- 1...Bc6
- 2.Sxd6#
- 1...Be6
- 2.d4#
- 1...g5
- 2.Qxf6#
- 1...g6
- 2.Qxd5#
- 2.Qxf6#
- 1...Rf3
- Tries
- 1.Qxd7+?
- 1...Be6
- 2.d4#
- 1...Kg6!
- 1...Be6
- 1.Qxd7+?
- Keys
- 1.Sf8!
- threat
- 2.Qxd5#
- 1...Bxc4+
- 2.dxc4#
- 1...Rxh3
- 2.Qg6#
- 1...Bxg2
- 2.Qxd7#
- 1...Bxf7
- 2.d4#
- 1...Rf3
- 2.g4#
- 1...Bd4
- 2.Qxd7#
- 1...Bf3
- 2.Sxe3#
- 1...Be4
- 2.Qxd7#
- 2.dxe4#
- 1...Bc6
- 2.Sxd6#
- 1...Be6
- 2.d4#
- 1...Bb7
- 2.Qxd7#
- 1...Ba8
- 2.Qxd7#
- threat
- 1.Sf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- R(b);N_SPINS(d),OGATE::P(D)
- R(b);SBLOCK::QAR2(K),XB(f)
- B(f);N_PINS(H),N_SPINS(d),P_SPINB(e)::S(H),XP(a)
- B(f);CHECK,OGATE,P_SPINB(e),XS(H)::B(B)+P(F),XB(f)
- B(f);N_PINS(H),OGATE,P_SPINB(e)::P(F),XB(f)
- B(f);N_PINS(H),P_SPINB(e)::S(H),XP(i)
- B(f);N_GUARD,P_SPINB(e)::B(B)+P(F)
- P(l);N_GUARD::QAR1(K),XP(j)
- Tries
- Try
- Q(K);CHECK,N_PINP(j),XP(k)
- Vars
- B(f);P_SPINB(e)::B(B)+P(F)
- Refutation
- K(g);N_SPINS(d),S_FLIGHT
- Try
- Actual
- S(L);
- Threat
- QAR2(K),XB(f)
- Vars
- B(f);CHECK,OGATE,P_SPINB(e),XS(H)::B(B)+P(F),XB(f)
- R(b);N_GUARD,XP(G)::QAB1(K)
- B(f);N_GUARD,N_PINS(H),P_SPINB(e),XP(D)::QAB(K),XP(k)
- B(f);N_GUARD,N_SPINP(j),P_SPINB(e),XQ(K)::B(B)+P(F)
- R(b);N_SPINS(d),OGATE::P(D)
- B(e);P_SPINB(f)::QAB(K),XP(k)
- B(f);N_PINS(H),N_SPINS(d),P_SPINB(e)::S(H),XP(a)
- B(f);N_PINS(H),P_SPINB(e)::S(H),XP(i)
- B(f);N_GUARD,P_SPINB(e)::B(B)+P(F)
- B(f);N_GUARD,N_PINS(H),P_SPINB(e)::QAB(K),XP(k)
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).