MESON Chess Problem Database
Problem Display
PID: 147153 (KNn3r1/2BN4/2R2Ppb/Pp1kP3/1pR1b3/1Q3n2/4Pr2/3q3B w - - 0 1)
Szoghy, Jozsef
La Settimana Enigmistica, 1936
#2
12 + 11
| 14868 | Pirnie Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Rxb4#
- 1...Qe1
- 2.Rxb4#
- 1...Qf1
- 2.Rxb4#
- 1...Qg1
- 2.Rxb4#
- 1...Qxh1
- 2.Rxb4#
- 1...Qd2
- 2.Rxb4#
- 1...Qd4
- 2.R4c5#
- 1...Se1
- 2.Bxe4#
- 1...Sg1
- 2.Bxe4#
- 1...Sd2
- 2.Qd3#
- 1...Sh2
- 2.Bxe4#
- 1...Sd4
- 2.R4c5#
- 1...Sh4
- 2.Bxe4#
- 1...Sxe5
- 2.Bxe4#
- 1...Sg5
- 2.Qxd1#
- 1...Sb6+
- 2.Sxb6#
- 1...Sd6
- 2.Rxd6#
- 1...Sa7
- 2.Sb6#
- 2.Rd6#
- 1...Se7
- 2.Sb6#
- 2.Rd6#
- 1...bxc4
- 2.Qxc4#
- 1...Qa1
- Tries
- 1.Qxd1+?
- 1...Bd3
- 2.Qxd3#
- 2.e4#
- 1...Sd2
- 2.Bxe4#
- 1...Sd4
- 2.Rxd4#
- 2.R4c5#
- 2.Qxd4#
- 1...Bd2!
- 1...Bd3
- 1.e3?
- threat
- 2.Rc2#
- 2.Rd4#
- 2.R4c5#
- 1...Sb6+
- 2.Sxb6#
- 1...Qxb3
- 2.R4c5#
- 1...Sxe5
- 2.Bxe4#
- 2.Rd4#
- 2.R4c5#
- 1...bxc4
- 2.Qxc4#
- 1...Sd6
- 2.Rd4#
- 2.R4c5#
- 2.Rxd6#
- 1...Qd4
- 2.Rxd4#
- 2.R4c5#
- 1...Qc2
- 2.Rxc2#
- 2.Rd4#
- 2.R4c5#
- 1...Qe2
- 2.Rd4#
- 2.R4c5#
- 1...Qb1
- 2.Rd4#
- 2.R4c5#
- 1...Qf1
- 2.Rd4#
- 2.R4c5#
- 1...Qd3
- 2.Rd4#
- 2.R4c5#
- 1...Rb2
- 2.Rd4#
- 2.R4c5#
- 1...Rc2
- 2.Rxc2#
- 2.Rc3#
- 2.Rd4#
- 2.R4c5#
- 1...Bb1
- 2.Rd4#
- 1...Bc2
- 2.Rd4#
- 1...Bd3
- 2.Rd4#
- 1...Bf5
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 2.R4c5#
- 2.Qd3#
- 1...Sd4
- 2.Rxd4#
- 2.R4c5#
- 1...Bxe3!
- threat
- 1.Qxd1+?
- Keys
- 1.f7!
- threat
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sb6+
- 2.Sxb6#
- 1...Qxe2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qxb3
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qxh1
- 2.Sf6#
- 2.Rxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rxe2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sxe5
- 2.Bxe4#
- 1...bxc4
- 2.Qxc4#
- 1...Sd6
- 2.Rxd6#
- 1...Qd4
- 2.Sf6#
- 2.R4c5#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qc2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qa1
- 2.Sf6#
- 2.Rxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qb1
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qc1
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qe1
- 2.Sf6#
- 2.Rxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qf1
- 2.Sf6#
- 2.Rxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qg1
- 2.Sf6#
- 2.Rxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qd2
- 2.Sf6#
- 2.Rxb4#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qd3
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rf1
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rg2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rh2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rg7
- 2.Sf6#
- 1...Rd8
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Rf8
- 2.Sf6#
- 1...Rh8
- 2.Sf6#
- 1...Bb1
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bc2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bd3
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bf5
- 2.Sf6#
- 1...Bc1
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bd2
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Be3
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bf4
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bg5
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bg7
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bf8
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Se1
- 2.Bxe4#
- 1...Sg1
- 2.Bxe4#
- 1...Sd2
- 2.Qd3#
- 1...Sh2
- 2.Bxe4#
- 1...Sd4
- 2.R4c5#
- 1...Sh4
- 2.Bxe4#
- 1...Sg5
- 2.Qxd1#
- 1...Sa7
- 2.Sb6#
- 2.Sf6#
- 2.Rd6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Se7
- 2.Sb6#
- 2.Sf6#
- 2.Rd6#
- 1...g5
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- threat
- 1.f7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD,P_PINP(E)::QAB(C)+R(D),XP(d)
- Q(a);N_GUARD::QAB(C)+R(D),XP(d)
- Q(a);N_GUARD,XB(A)::QAB(C)+R(D),XP(d)
- Q(a);SBLOCK::QAB(C)+R(D),DCHECK
- S(c);OGATE,P_SPINB(e)::B(A),XB(e)
- S(c);N_GUARD,P_SPINB(e),S_CUTQ(a)::QAR2(C)
- S(c);P_SPINB(e),SBLOCK::QAB(C)+R(D),DCHECK
- S(c);OGATE,P_SPINB(e),XP(F)::B(A),XB(e)
- S(c);N_GUARD,P_SPINB(e),S_CUTB(i)::QAR(C),XQ(a)
- S(j);CHECK,N_GUARD,P_PINS(L)::S(J),XS(j)
- S(j);N_GUARD,P_PINS(L)::R1(G),XS(j)
- P(f);OGATE,P_SPINP(f),XR(D)::QAB1(C),XP(f)
- Tries
- Try
- Q(C);CHECK,XQ(a)
- Vars
- S(c);OGATE,P_SPINB(e),P_SPINS(c)::B(A),XB(e)
- Refutation
- B(i);P_SPINB(i)
- Try
- P(B);
- Threat
- DUALS(3)
- Vars
- S(j);CHECK,N_GUARD,P_PINS(L)::S(J),XS(j)
- Q(a);XQ(C)::R1(D)
- P(f);OGATE,P_SPINP(f),XR(D)::QAB1(C),XP(f)
- B(e);P_SPINS(c)::QAB(C)+R(D),DCHECK
- Refutation
- B(i);XP(B)
- Try
- Actual
- P(H);
- Threat
- DUALS(3)
- Vars
- S(j);CHECK,N_GUARD,P_PINS(L)::S(J),XS(j)
- S(c);OGATE,P_SPINB(e),XP(F)::B(A),XB(e)
- P(f);OGATE,P_SPINP(f),XR(D)::QAB1(C),XP(f)
- S(j);N_GUARD,P_PINS(L)::R1(G),XS(j)
- R(k);::S(J)
- B(e);P_SPINS(c)::S(J)
- B(i);::PXR(k)=Q
- S(c);OGATE,P_SPINB(e)::B(A),XB(e)
- S(c);N_GUARD,P_SPINB(e),S_CUTQ(a)::QAR2(C)
- S(c);P_SPINB(e),SBLOCK::QAB(C)+R(D),DCHECK
- S(c);N_GUARD,P_SPINB(e),S_CUTB(i)::QAR(C),XQ(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).