MESON Chess Problem Database
Problem Display
PID: 250246 (5r2/1pN1p1Q1/1K1R1r1p/2P1k3/3nB3/4PP1b/1b2pn2/4Nq2 w - - 0 1)
Dulcsan, Geza
Fleck, Ferenc
3rd Comm., Nepszava, 1927
#2
9 + 12
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Qg3#
- 1...Sd1
- 2.Sd3#
- 1...Sh1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sg4
- 2.Sd3#
- 1...Sf5
- 2.Re6#
- 1...Sc6
- 2.Rd5#
- 1...Se6
- 2.Rd5#
- 1...Bf5
- Tries
- 1.Bg6?
- threat
- 2.f4#
- 1...Sxf3
- 2.Sxf3#
- 1...Sd1
- 2.Sd3#
- 1...Sh1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...Sf5
- 2.Re6#
- 1...Se6
- 2.Rd5#
- 1...Bf5!
- threat
- 1.Rxf6?
- threat
- 2.Rf5#
- 2.Re6#
- 2.Rf7#
- 2.Rxf8#
- 1...Sxe4
- 2.Sd3#
- 1...Sxf3
- 2.Re6#
- 1...exf6
- 2.Qg3#
- 1...Qg2
- 2.Rf5#
- 2.Re6#
- 1...Qg1
- 2.Rf5#
- 2.Re6#
- 1...Rf7
- 2.Rf5#
- 2.Re6#
- 2.Rxf7#
- 1...Ra8
- 2.Rf4#
- 2.Rf5#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rxh6#
- 2.Rf7#
- 2.Rf8#
- 1...Rb8
- 2.Rf4#
- 2.Rf5#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rxh6#
- 2.Rf7#
- 2.Rf8#
- 1...Rc8
- 2.Rf4#
- 2.Rf5#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rxh6#
- 2.Rf7#
- 2.Rf8#
- 1...Rd8
- 2.Rf4#
- 2.Rf5#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rxh6#
- 2.Rf7#
- 2.Rf8#
- 1...Re8
- 2.Rf4#
- 2.Rf5#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rxh6#
- 2.Rf7#
- 2.Rf8#
- 1...Rg8
- 2.Rf5#
- 2.Re6#
- 1...Rh8
- 2.Rf4#
- 2.Rf5#
- 2.Rc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rxh6#
- 2.Rf7#
- 2.Rf8#
- 1...Bf5
- 2.Rxf5#
- 2.Re6#
- 2.Rf7#
- 2.Rxf8#
- 1...Be6
- 2.Rf5#
- 2.Rxe6#
- 2.Rf7#
- 2.Rxf8#
- 1...Sg4
- 2.Sd3#
- 2.Rf5#
- 2.Re6#
- 1...Sf5
- 2.Rxf5#
- 2.Re6#
- 1...Se6
- 2.Rf5#
- 2.Rxe6#
- 1...e6
- 2.Rf5#
- 2.Rxe6#
- 2.Rf7#
- 2.Rxf8#
- 1...Rxf6+!
- threat
- 1.Qxf6+?
- 1...exf6
- 2.Rd5#
- 1...Rxf6!
- 1...exf6
- 1.Qg5+?
- 1...Rf5
- 2.Rd5#
- 1...Bf5
- 2.Qf4#
- 2.Qg3#
- 1...Sf5
- 2.Qf4#
- 1...hxg5!
- 1...Rf5
- 1.Qxe7+?
- 1...Be6
- 2.Rd5#
- 1...Se6
- 2.Rd5#
- 1...Re6!
- 1...Be6
- 1.exd4+?
- 1...Kf4
- 2.Sd5#
- 1...Bxd4!
- 1...Kf4
- 1.Bg6?
- Keys
- 1.Bh7!
- threat
- 2.f4#
- 1...Sxf3
- 2.Sxf3#
- 1...Bf5
- 2.Qg3#
- 1...Sd1
- 2.Sd3#
- 1...Sh1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Se4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...Sf5
- 2.Re6#
- 1...Se6
- 2.Rd5#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(e);::QAB(I)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- S(f);N_GUARD,S_CUTB(e)::R1(G)
- S(f);N_PINR(G)::R1(G)
- Tries
- Try
- B(D);
- Threat
- P(C)
- Vars
- S(f);XP(C)::S(A),XS(f)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- S(f);N_GUARD,S_CUTB(e)::R1(G)
- S(f);N_PINR(G)::R1(G)
- Refutation
- B(e);
- Try
- R(G);N_SPINR(G),XR(h)
- Threat
- DUALS(4)
- Vars
- S(d);N_GUARD,XB(D)::S(A)
- S(f);XP(C)::QAB(I)+R(G),DCHECK
- P(k);P_SPINP(k),SBLOCK,XR(G)::QAB(I)
- Refutation
- R(l);CHECK,P_SPINR(l),XR(G)
- Try
- Q(I);CHECK,N_SPINR(G),XR(h)
- Vars
- P(k);SBLOCK,XQ(I)::R1(G)
- Refutation
- R(l);P_PINR(G),XQ(I)
- Try
- Q(I);CHECK,N_PINR(h)
- Vars
- R(h);N_PINR(G),P_SPINR(h)::R1(G)
- S(f);P_SPINS(f),S_CUTR(h)::QAB1(I)
- Refutation
- P(i);XQ(I)
- Try
- Q(I);CHECK,N_PINR(h),XP(k)
- Vars
- B(e);N_PINR(G),P_SPINB(e)::R1(G)
- S(f);N_PINR(G),P_SPINS(f)::R1(G)
- Refutation
- R(h);P_SPINR(h)
- Try
- P(B);CHECK,XS(f)
- Vars
- K(g);N_GUARD,N_SPINR(h),S_CUTB(b),S_FLIGHT::S(H)
- Refutation
- B(b);P_PINP(E),XP(B)
- Try
- Actual
- B(D);
- Threat
- P(C)
- Vars
- S(f);XP(C)::S(A),XS(f)
- B(e);::QAB(I)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- S(f);N_GUARD,S_CUTB(e)::R1(G)
- S(f);N_PINR(G)::R1(G)
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).