MESON Chess Problem Database
Problem Display
PID: 174341 (Q1B3r1/3bN3/q4n2/2pnBp2/4kP1N/2R3pK/4PR2/8 w - - 0 1)
Dragoescu, Radu
5th HM., Boletim da UBP, 1986-1987
#2
10 + 9
| 1077 | Boletim da UBP | 1989 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.Rxe2#
- 1...Ba4
- 2.Bxf5#
- 1...Bb5
- 2.Bxf5#
- 1...Bc6
- 2.Bxf5#
- 1...Be8
- 2.Bxf5#
- 1...Sg4
- 2.Qxd5#
- 1...Sh5
- 2.Qxd5#
- 1...Sh7
- 2.Qxd5#
- 1...Se8
- 2.Qxd5#
- 1...Qxe2
- Tries
- 1.Sg2?
- threat
- 2.Re3#
- 1...Qxe2
- 2.Rxe2#
- 1...Qxa8
- 2.Rc4#
- 1...Qd3
- 2.exd3#
- 1...Qb7
- 2.Rc4#
- 1...Qa3
- 2.Rc4#
- 1...Qc6
- 2.Rc4#
- 1...Bc6
- 2.Bxf5#
- 1...Sg4
- 2.Qxd5#
- 1...Rh8+!
- threat
- 1.Shxf5?
- threat
- 2.Re3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Qxe2
- 2.Rxe2#
- 1...Qxa8
- 2.Rc4#
- 1...Qd3
- 2.exd3#
- 1...Qb7
- 2.Rc4#
- 1...Qa3
- 2.Rc4#
- 1...Qc6
- 2.Rc4#
- 1...Bc6
- 2.Sd6#
- 1...Sg4
- 2.Sxg3#
- 2.Qxd5#
- 1...Rh8+!
- threat
- 1.Sxd5?
- threat
- 2.Sxf6#
- 2.Re3#
- 1...Qxe2
- 2.Sxf6#
- 2.Rxe2#
- 1...Qxa8
- 2.Sxf6#
- 1...Qb7
- 2.Sxf6#
- 1...Qc6
- 2.Sxf6#
- 1...Bc6
- 2.Sxf6#
- 1...Qd3
- 2.exd3#
- 1...Qa3
- 2.Sxf6#
- 2.Rc4#
- 1...Sg4
- 2.Sf6#
- 1...Sh5
- 2.Sf6#
- 2.Re3#
- 1...Sh7
- 2.Sf6#
- 2.Re3#
- 1...Se8
- 2.Sf6#
- 2.Re3#
- 1...Sxd5!
- threat
- 1.Rff3?
- threat
- 2.Rce3#
- 2.Rfe3#
- 1...Qxa8
- 2.Rc4#
- 1...Qd3
- 2.exd3#
- 1...Qb7
- 2.Rc4#
- 1...Qa3
- 2.Rc4#
- 2.Rfe3#
- 1...Qc6
- 2.Rc4#
- 1...Bc6
- 2.Bxf5#
- 1...Sg4
- 2.Qxd5#
- 1...Qxe2!
- threat
- 1.Qxa6?
- threat
- 2.Qd3#
- 2.Qc4#
- 1...Sxc3
- 2.Qd3#
- 1...Bb5
- 2.Bxf5#
- 1...Se3
- 2.Qd3#
- 1...Sb4
- 2.Qc4#
- 1...Sb6
- 2.Qd3#
- 1...c4
- 2.Qxc4#
- 1...Sxf4+!
- threat
- 1.Sg2?
- Keys
- 1.Sexf5!
- threat
- 2.Re3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Qxe2
- 2.Rxe2#
- 1...Qxa8
- 2.Rc4#
- 1...Qd3
- 2.exd3#
- 1...Qb7
- 2.Rc4#
- 1...Qa3
- 2.Rc4#
- 1...Qc6
- 2.Rc4#
- 1...Bc6
- 2.Sd6#
- 1...Sg4
- 2.Sxg3#
- threat
- 1.Sexf5!
This is a version of 133173
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- Q(f);OGATE,XP(A)::R(B),XQ(f)
- B(h);OGATE::B(J),XP(e)
- B(h);N_SPINS(d),OGATE::B(J),XP(e)
- S(g);N_GUARD::QAB1(I),XS(d)
- Tries
- Try
- S(F);
- Threat
- R1(C)
- Vars
- Q(f);OGATE,XP(A)::R(B),XQ(f)
- Q(f);N_GUARD,N_SPINS(d),XQ(I)::R(C)
- Q(f);OGATE::P(A),XQ(f)
- Q(f);N_GUARD,N_SPINS(d)::R(C)
- Q(f);N_GUARD::R(C)
- B(h);N_SPINS(d),OGATE::B(J),XP(e)
- S(g);N_GUARD::QAB1(I),XS(d)
- Refutation
- R(i);CHECK
- Try
- S(F);P_SPINS(F),XP(e)
- Threat
- R1(C)
- Vars
- B(h);CHECK,OGATE,XS(F)::B(J),XB(h)
- Q(f);OGATE,XP(A)::R(B),XQ(f)
- Q(f);N_GUARD,N_SPINS(d),XQ(I)::R(C)
- Q(f);OGATE::P(A),XQ(f)
- Q(f);N_GUARD,N_SPINS(d)::R(C)
- Q(f);N_GUARD::R(C)
- B(h);N_PINS(F),N_SPINS(d)::S(F)
- Refutation
- R(i);CHECK
- Try
- S(H);XS(d)
- Threat
- DUALS(2)
- Vars
- Q(f);XQ(I)::S(H),XS(g)
- Q(f);::S(H),XS(g)
- B(h);::S(H),XS(g)
- Q(f);OGATE::P(A),XQ(f)
- S(g);::QAB(I)+S(H),DCHECK
- Refutation
- S(g);P_SPINS(g),XS(H)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,N_SPINS(d),XQ(I)::R(C)
- Q(f);OGATE::P(A),XQ(f)
- Q(f);N_GUARD,N_SPINS(d)::R(C)
- B(h);N_SPINS(d),OGATE::B(J),XP(e)
- S(g);N_GUARD::QAB1(I),XS(d)
- Refutation
- Q(f);XP(A)
- Try
- Q(I);N_PINS(d),XQ(f)
- Threat
- DUALS(2)
- Vars
- S(d);XR(C)::QAB1(I)
- B(h);OGATE::B(J),XP(e)
- S(d);::QAB1(I)
- S(d);::QAR2(I)
- P(c);::QAR2(I),XP(c)
- Refutation
- S(d);CHECK,XP(E)
- Try
- Actual
- S(H);P_SPINS(H),XP(e)
- Threat
- R1(C)
- Vars
- B(h);CHECK,OGATE,XS(H)::B(J),XB(h)
- Q(f);OGATE,XP(A)::R(B),XQ(f)
- Q(f);N_GUARD,N_SPINS(d),XQ(I)::R(C)
- Q(f);OGATE::P(A),XQ(f)
- Q(f);N_GUARD,N_SPINS(d)::R(C)
- Q(f);N_GUARD::R(C)
- B(h);N_PINS(H),N_SPINS(d)::S(H)
- S(g);N_PINS(H)::S(H),XP(a)
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).