MESON Chess Problem Database
Problem Display
PID: 92880 (8/2p5/N1P3N1/2Rp1B1p/3k2nQ/2p3K1/2p1b3/2B1R3 w - - 0 1)
Kovacs, Florian Janos
Upsala Allmana Schacksallskap, 1925
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Be3#
- 1...Bf1
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...Bf3
- 2.Be3#
- 1...Bc4
- 2.Be3#
- 1...Bb5
- 2.Be3#
- 1...Bxa6
- 2.Be3#
- 1...Bd1
- Tries
- 1.Kh3?
- 1...Bxa6
- 2.Be3#
- 1...Bd1
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...Bf3
- 2.Be3#
- 1...Bc4
- 2.Be3#
- 1...Bb5
- 2.Be3#
- 1...Bf1+!
- 1...Bxa6
- 1.Sb4?
- 1...Bd1
- 2.Be3#
- 1...Bf1
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...Bf3
- 2.Be3#
- 1...Bc4
- 2.Be3#
- 1...Bb5
- 2.Be3#
- 1...Ba6
- 2.Be3#
- 1...Kxc5!
- 1...Bd1
- 1.Sb8?
- 1...Bd1
- 2.Be3#
- 1...Bf1
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...Bf3
- 2.Be3#
- 1...Bc4
- 2.Be3#
- 1...Bb5
- 2.Be3#
- 1...Ba6
- 2.Be3#
- 1...Kxc5!
- 1...Bd1
- 1.Sf8?
- 1...Bxa6
- 2.Se6#
- 1...Bd1
- 2.Se6#
- 1...Bf1
- 2.Se6#
- 1...Bd3
- 2.Se6#
- 1...Bf3
- 2.Se6#
- 1...Bc4
- 2.Se6#
- 1...Bb5
- 2.Se6#
- 1...Ke5!
- 1...Bxa6
- 1.Bxc2?
- 1...Bxa6
- 2.Be3#
- 1...Bd1
- 2.Be3#
- 2.Rxd1#
- 1...Bf1
- 2.Be3#
- 1...Bf3
- 2.Be3#
- 1...Bc4
- 2.Be3#
- 1...Bb5
- 2.Be3#
- 1...Bd3!
- 1...Bxa6
- 1.Rc4+?
- 1...Bxc4
- 2.Be3#
- 1...dxc4
- 2.Qd8#
- 1...Kxc4!
- 1...Bxc4
- 1.Qf6+?
- 1...Se5
- 2.Qxe5#
- 1...Sxf6!
- 1...Se5
- 1.Qxg4+?
- 1...Bxg4
- 2.Be3#
- 1...hxg4!
- 1...Bxg4
- 1.Kh3?
- Keys
- 1.Sf4!
- 1...Ke5
- 2.Rxd5#
- 1...Bxa6
- 2.Se6#
- 1...Bd1
- 2.Se6#
- 1...Bf1
- 2.Se6#
- 1...Bd3
- 2.Se6#
- 1...Bf3
- 2.Se6#
- 1...Bc4
- 2.Se6#
- 1...Bb5
- 2.Se6#
- 1...Sf2
- 2.Qf6#
- 1...Sh2
- 2.Qf6#
- 1...Se3
- 2.Qf6#
- 1...Se5
- 2.Sxe2#
- 2.Se6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...Ke5
- 1.Sf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(b);::B(A)
- B(b);XS(G)::B(A)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- B(b);XS(G)::B(A)
- B(b);::B(A)
- Refutation
- B(b);CHECK
- Try
- S(G);
- Vars
- B(b);::B(A)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT,XR(E)
- Try
- S(G);
- Vars
- B(b);::B(A)
- Refutation
- K(d);N_SPINS(e),S_FLIGHT,XR(E)
- Try
- S(I);
- Vars
- B(b);XS(G)::S(I)
- B(b);::S(I)
- Refutation
- K(d);N_SPINS(e),P_SPINB(b),P_SPINP(f),S_FLIGHT
- Try
- B(F);XP(a)
- Vars
- B(b);XS(G)::B(A)
- B(b);::B(A)
- Refutation
- B(b);
- Try
- R(E);CHECK
- Vars
- B(b);SBLOCK,XR(E)::B(A)
- P(f);SBLOCK,S_CUTB(b),XR(E)::QAR(D)
- Refutation
- K(d);P-FLIGHT,XR(E)
- Try
- Q(D);CHECK,N_PINS(e)
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB1(D),XS(e)
- Refutation
- S(e);XQ(D)
- Try
- Q(D);CHECK,XS(e)
- Vars
- B(b);XQ(D)::B(A)
- Refutation
- P(g);XQ(D)
- Try
- Actual
- S(I);N_PINS(e)
- Vars
- K(d);P_SPINB(b),P_SPINP(f),S_FLIGHT::R1(E),XP(f)
- B(b);XS(G)::S(I)
- B(b);::S(I)
- S(e);N_GUARD::QAB(D)
- S(e);N_GUARD::QAB(D),XS(e)
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).