MESON Chess Problem Database
Problem Display
PID: 225894 (3N3n/2p3K1/1r1P2pB/4k3/1pQNbp2/3P4/4n3/4R1b1 w - - 0 1)
Formanek, Bedrich
Kovacik, Jozef
Praca, 1954
#2
8 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxd4
- 2.Qe6#
- 1...Bf5
- 2.Qc5#
- 1...Sc1
- 2.Qc5#
- 1...Sg3
- 2.Qc5#
- 1...Sxd4
- 2.Qc5#
- 1...Sf7
- 2.Sxf7#
- 1...Bxd4
- Tries
- 1.Sc2?
- threat
- 2.Qe6#
- 1...Kf5
- 2.Qe6#
- 1...Rxd6
- 2.Qxe4#
- 1...Bd5
- 2.Qxf4#
- 1...Bf5
- 2.Bxf4#
- 1...Sd4
- 2.Qc5#
- 1...Kxd6!
- threat
- 1.Sxe2?
- threat
- 2.Qe6#
- 1...Kf5
- 2.Qe6#
- 1...Rxd6
- 2.Qxe4#
- 1...Bd5
- 2.Qxf4#
- 1...Bf5
- 2.Bxf4#
- 1...Kxd6!
- threat
- 1.Sb5?
- threat
- 2.Qe6#
- 2.Qxe4#
- 1...Kf5
- 2.Qe6#
- 1...Rxd6
- 2.Qxe4#
- 1...Bxd3
- 2.Qe6#
- 1...Bd4
- 2.Qe6#
- 1...Bh1
- 2.Qe6#
- 1...Bg2
- 2.Qe6#
- 1...Bf3
- 2.Qe6#
- 1...Bd5
- 2.Qxf4#
- 1...Bf5
- 2.Bxf4#
- 1...Bc6
- 2.Qe6#
- 1...Bb7
- 2.Qe6#
- 1...Ba8
- 2.Qe6#
- 1...Sc3
- 2.Qe6#
- 1...Sg3
- 2.Qe6#
- 1...Sd4
- 2.Qc5#
- 1...Rxb5!
- threat
- 1.Sf5?
- threat
- 2.Qe6#
- 2.Qxe4#
- 1...Kxf5
- 2.Qe6#
- 1...Rxd6
- 2.Qxe4#
- 1...Bxd3
- 2.Qe6#
- 1...Bxf5
- 2.Bxf4#
- 1...Bd4
- 2.Qe6#
- 1...Bh1
- 2.Qe6#
- 1...Bg2
- 2.Qe6#
- 1...Bf3
- 2.Qe6#
- 1...Bd5
- 2.Qxf4#
- 1...Bc6
- 2.Qe6#
- 1...Bb7
- 2.Qe6#
- 1...Ba8
- 2.Qe6#
- 1...Sc3
- 2.Qe6#
- 1...Sg3
- 2.Qe6#
- 1...Sd4
- 2.Qc5#
- 1...gxf5!
- threat
- 1.Sc2?
- Keys
- 1.Sb3!
- threat
- 2.Qe6#
- 1...Kf5
- 2.Qe6#
- 1...Kxd6
- 2.Qe6#
- 1...Rxd6
- 2.Qxe4#
- 1...Bd5
- 2.Qxf4#
- 1...Bf5
- 2.Bxf4#
- 1...Sd4
- 2.Qc5#
- threat
- 1.Sb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- B(a);SBLOCK,XS(D)::QAR1(C)
- B(d);N_GUARD,P_SPINS(b)::QAR2(C)
- S(b);P_SPINB(d)::QAR2(C)
- S(b);P_SPINB(d),XS(D)::QAR2(C)
- S(j);N_GUARD::S(H),XS(j)
- Tries
- Try
- S(D);
- Threat
- QAR1(C)
- Vars
- K(f);P-FLIGHT::QAB1(C)
- R(g);SBLOCK,XP(E)::QAR1(C),XB(d)
- B(d);OGATE,P_SPINS(b),SBLOCK::QAB1(C),XP(e)
- B(d);P_SPINS(b),SBLOCK::B(F),XP(e)
- S(b);P_SPINB(d),S_CUTB(a)::QAR2(C)
- Refutation
- K(f);S_FLIGHT,XP(E)
- Try
- S(D);XS(b)
- Threat
- QAR1(C)
- Vars
- K(f);P-FLIGHT::QAB1(C)
- R(g);SBLOCK,XP(E)::QAR1(C),XB(d)
- B(d);OGATE,SBLOCK::QAB1(C),XP(e)
- B(d);SBLOCK::B(F),XP(e)
- Refutation
- K(f);S_FLIGHT,XP(E)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT::QAB1(C)
- R(g);XP(E)::QAR1(C),XB(d)
- B(d);P_SPINS(b),XP(B)::QAR1(C)
- B(a);::QAR1(C)
- B(d);P_SPINS(b)::QAR1(C)
- B(d);OGATE,P_SPINS(b),SBLOCK::QAB1(C),XP(e)
- B(d);P_SPINS(b),SBLOCK::B(F),XP(e)
- S(b);P_SPINB(d)::QAR1(C)
- S(b);P_SPINB(d),S_CUTB(a)::QAR2(C)
- Refutation
- R(g);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT,XS(D)::QAB1(C)
- R(g);XP(E)::QAR1(C),XB(d)
- B(d);P_SPINS(b),XP(B)::QAR1(C)
- B(d);P_SPINS(b),SBLOCK,XS(D)::B(F),XP(e)
- B(a);::QAR1(C)
- B(d);P_SPINS(b)::QAR1(C)
- B(d);OGATE,P_SPINS(b),SBLOCK::QAB1(C),XP(e)
- S(b);P_SPINB(d)::QAR1(C)
- S(b);P_SPINB(d),S_CUTB(a)::QAR2(C)
- Refutation
- P(h);XS(D)
- Try
- Actual
- S(D);
- Threat
- QAR1(C)
- Vars
- K(f);P-FLIGHT::QAB1(C)
- K(f);S_FLIGHT,XP(E)::QAR1(C)
- R(g);SBLOCK,XP(E)::QAR1(C),XB(d)
- B(d);OGATE,P_SPINS(b),SBLOCK::QAB1(C),XP(e)
- B(d);P_SPINS(b),SBLOCK::B(F),XP(e)
- S(b);P_SPINB(d),S_CUTB(a)::QAR2(C)
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).