MESON Chess Problem Database
Problem Display
PID: 240389 (2b4B/2pnKN2/7Q/R5p1/5k1b/4RpnP/3PrP2/1B4q1 w - - 0 1)
Zilahi, Zoltan
Tijdschrift vd KNSB, 1940
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3+
- 2.dxe3#
- 1...Sf1
- 2.Ra4#
- 2.Rf5#
- 1...Sh1
- 2.Ra4#
- 2.Rf5#
- 1...Sf5+
- 2.Rxf5#
- 1...Sh5
- 2.Ra4#
- 2.Rf5#
- 1...Sc5
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Sb6
- 2.Be5#
- 1...Sb8
- 2.Be5#
- 1...Sf8
- 2.Be5#
- 1...Rxe3+
- Tries
- 1.Sd8?
- threat
- 2.Se6#
- 1...Rxe3+
- 2.dxe3#
- 1...Sf5+
- 2.Rxf5#
- 1...Sc5
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Sb6
- 2.Be5#
- 1...Sb8
- 2.Be5#
- 1...Sf8
- 2.Be5#
- 1...Sf6!
- threat
- 1.Qxh4+?
- 1...g4
- 2.Qg5#
- 2.Qxg4#
- 2.Qh6#
- 1...gxh4!
- 1...g4
- 1.Qh5?
- threat
- 2.Qxf3#
- 2.Qg4#
- 1...Rxe3+
- 2.dxe3#
- 1...Sf5+
- 2.Rxf5#
- 1...Qxf2
- 2.Qg4#
- 1...Rxf2
- 2.Qg4#
- 1...Sxh5
- 2.Ra4#
- 2.Rf5#
- 1...Qh1
- 2.Qg4#
- 1...Qg2
- 2.Qg4#
- 1...Bb7
- 2.Qg4#
- 1...Sf1
- 2.Ra4#
- 2.Rf5#
- 2.Qxf3#
- 1...Sh1
- 2.Ra4#
- 2.Rf5#
- 2.Qxf3#
- 1...Se4
- 2.Rxf3#
- 2.Qxf3#
- 1...Sc5
- 2.Be5#
- 2.Qxf3#
- 1...Se5
- 2.Bxe5#
- 1...Sb6
- 2.Be5#
- 2.Qxf3#
- 1...Sf6
- 2.Qxf3#
- 1...Sb8
- 2.Be5#
- 2.Qxf3#
- 1...Sf8
- 2.Be5#
- 2.Qxf3#
- 1...g4+!
- threat
- 1.Qd6+?
- 1...Se5
- 2.Bxe5#
- 2.Qxe5#
- 1...cxd6!
- 1...Se5
- 1.Qe6?
- threat
- 2.Qg4#
- 1...Sf5+
- 2.Rxf5#
- 2.Qxf5#
- 1...Rxe3
- 2.Qxe3#
- 2.dxe3#
- 1...Sf1
- 2.Ra4#
- 2.Rf5#
- 2.Qc4#
- 2.Qf5#
- 2.Qe4#
- 1...Sh1
- 2.Ra4#
- 2.Rf5#
- 2.Qc4#
- 2.Qf5#
- 2.Qe4#
- 1...Se4
- 2.Rf5#
- 2.Qf5#
- 2.Qxe4#
- 1...Sh5
- 2.Ra4#
- 2.Rf5#
- 2.Qc4#
- 2.Qf5#
- 2.Qe4#
- 1...Sc5
- 2.Be5#
- 2.Qe5#
- 1...Se5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sb6
- 2.Be5#
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sb8
- 2.Be5#
- 2.Qe5#
- 1...Sf8
- 2.Be5#
- 2.Qe5#
- 1...g4+!
- threat
- 1.Qf6+?
- 1...Sf5+
- 2.Rxf5#
- 2.Qxf5#
- 1...Sxf6!
- 1...Sf5+
- 1.fxg3+?
- 1...Qxg3
- 2.Ra4#
- 2.Rf5#
- 1...Bxg3
- 2.Ra4#
- 2.Rf5#
- 2.Qxg5#
- 1...Kxg3!
- 1...Qxg3
- 1.Sd8?
- Keys
- 1.Sxg5!
- threat
- 2.Qxh4#
- 1...Rxe3+
- 2.dxe3#
- 1...Bxg5+
- 2.Qxg5#
- 1...Sf5+
- 2.Rxf5#
- 1...Sf1
- 2.Ra4#
- 2.Rf5#
- 1...Sh1
- 2.Ra4#
- 2.Rf5#
- 1...Se4
- 2.Rxf3#
- 1...Sh5
- 2.Ra4#
- 2.Rf5#
- 1...Sc5
- 2.Be5#
- 1...Se5
- 2.Bxe5#
- 1...Sb6
- 2.Be5#
- 1...Sf6
- 2.Se6#
- 1...Sb8
- 2.Be5#
- 1...Sf8
- 2.Be5#
- threat
- 1.Sxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);CHECK,OGATE,XR(D)::P(B),XR(b)
- S(d);CHECK,N_GUARD::R1(F),XS(d)
- S(i);N_GUARD::B(J)
- S(i);N_GUARD,N_PINR(D)::B(J),XS(i)
- Tries
- Try
- S(I);
- Threat
- S(I)
- Vars
- R(b);CHECK,OGATE,XR(D)::P(B),XR(b)
- S(d);CHECK,N_GUARD::R1(F),XS(d)
- S(i);N_GUARD::B(J)
- S(i);N_GUARD,N_PINR(D)::B(J),XS(i)
- Refutation
- S(i);
- Try
- Q(G);CHECK,N_PINP(g),XB(f)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);N_PINP(g)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,OGATE,XR(D)::P(B),XR(b)
- S(d);CHECK,N_GUARD::R1(F),XS(d)
- Q(a);XP(C)::QAR1(G)
- R(b);N_PINR(D),XP(C)::QAR1(G)
- Q(a);::QAR1(G)
- B(j);::QAR1(G)
- S(i);N_GUARD,N_PINR(D)::B(J),XS(i)
- S(i);::QAR1(G),XP(c)
- Refutation
- P(g);CHECK
- Try
- Q(G);CHECK,N_PINP(g)
- Refutation
- P(h);XQ(G)
- Try
- Q(G);N_PINP(g),N_SPINR(D)
- Threat
- QAR1(G)
- Vars
- S(i);N_GUARD::QAB1(G)
- Refutation
- P(g);CHECK
- Try
- Q(G);CHECK,N_PINP(g)
- Refutation
- S(i);XQ(G)
- Try
- P(C);CHECK,XS(d)
- Refutation
- K(e);N_SPINP(g),P_SPINP(c),S_FLIGHT,XP(C)
- Try
- Actual
- S(I);P_SPINS(I),XP(g)
- Threat
- QAR2(G),XB(f)
- Vars
- R(b);CHECK,OGATE,XR(D)::P(B),XR(b)
- B(f);CHECK,OGATE,P_SPINB(f),XS(I)::QAB1(G),XB(f)
- S(d);CHECK,N_GUARD::R1(F),XS(d)
- S(d);N_PINR(D)::R1(D),XP(c)
- S(i);N_GUARD::B(J)
- S(i);N_GUARD,N_PINR(D)::B(J),XS(i)
- S(i);N_PINS(I)::QAB(G)+S(I),DCHECK
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).