MESON Chess Problem Database
Problem Display
PID: 107640 (8/2K1pPQ1/2pR1p2/2Rp4/1P1kBN2/2r2P2/4n1N1/B1n3b1 w - - 0 1)
Bakcsi, Gyorgy
Northwest Chess, 1977
#2
11 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sg3
- 2.Bxc3#
- 1...Sxf4
- 2.Bxc3#
- 1...exd6
- 2.Qxf6#
- 1...e5
- 2.Se6#
- 1...Sg3
- Tries
- 1.Kxc6?
- threat
- 2.Rxd5#
- 1...Ke5
- 2.Rxd5#
- 1...Sxf4
- 2.Bxc3#
- 1...exd6
- 2.Qxf6#
- 1...e6!
- threat
- 1.Sxe2+?
- 1...Ke5
- 2.Qg3#
- 1...Sxe2!
- 1...Ke5
- 1.Sxd5?
- threat
- 2.Sxe7#
- 1...Ke5
- 2.Sde3#
- 1...cxd5
- 2.Rxd5#
- 1...exd6
- 2.Qxf6#
- 1...Sf4
- 2.Bxc3#
- 1...e5
- 2.Sxc3#
- 2.Sde3#
- 2.Sdf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Se7#
- 1...e6
- 2.Sxc3#
- 2.Sde3#
- 2.Sdf4#
- 2.Sb6#
- 2.Sxf6#
- 2.Se7#
- 1...Bh2!
- threat
- 1.Rc4+?
- 1...Ke5
- 2.Sg6#
- 2.Re6#
- 1...Kxc4!
- 1...Ke5
- 1.Rcxc6?
- threat
- 2.Rxd5#
- 1...Ke5
- 2.Rxd5#
- 1...Sxf4
- 2.Bxc3#
- 1...exd6
- 2.Qxf6#
- 1...e6!
- threat
- 1.Rdxc6?
- threat
- 2.Rxd5#
- 1...Ke5
- 2.Rxd5#
- 1...Sxf4
- 2.Bxc3#
- 1...dxe4
- 2.Rd5#
- 1...e6!
- threat
- 1.Rxf6?
- threat
- 2.Re6#
- 1...Ke5
- 2.Rf5#
- 2.Rfxc6#
- 2.Rd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 1...exf6
- 2.Qxf6#
- 1...e5
- 2.Se6#
- 1...e6
- 2.Rxe6#
- 1...Sd3!
- threat
- 1.Qxf6+?
- 1...e5
- 2.Se6#
- 1...exf6!
- 1...e5
- 1.Kxc6?
- Keys
- 1.Qg3!
- threat
- 2.Se6#
- 1...Ke5
- 2.Sxe2#
- 1...Sxg3
- 2.Bxc3#
- 1...Sxf4
- 2.Bxc3#
- 1...e6
- 2.Sxe6#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- S(c);N_GUARD::B(A),XR(d)
- S(c);N_GUARD,XS(F)::B(A),XR(d)
- P(i);N_GUARD,N_SPINP(f),P_SPINP(h),XR(H)::QAB(K),XP(h)
- P(i);SBLOCK::S(F)
- Tries
- Try
- K(I);P-FLIGHT,P_SPINR(G),XP(g)
- Threat
- R1(H),XP(f)
- Vars
- K(e);S_FLIGHT::R1(H),XP(f)
- S(c);N_GUARD,XS(F)::B(A),XR(d)
- P(i);N_GUARD,N_SPINP(f),P_SPINP(h),XR(H)::QAB(K),XP(h)
- Refutation
- P(i);
- Try
- S(F);CHECK,XS(c)
- Vars
- K(e);S_FLIGHT::QAB(K)
- Refutation
- S(a);XS(F)
- Try
- S(F);P_PINP(h),XP(f)
- Threat
- R(H)+S(F),XP(i)
- Vars
- K(e);S_FLIGHT::R(G)+S(F)
- P(g);N_SPINP(h),OGATE,P_PINR(G),P_SPINP(g),XS(F)::R1(H),XP(g)
- P(i);N_GUARD,XR(H)::QAB(K),XP(h)
- S(c);N_GUARD::B(A),XR(d)
- Refutation
- B(b);P_PINR(H)
- Try
- R(G);CHECK
- Refutation
- K(e);N_SPINP(f),N_SPINR(d),P-FLIGHT,XR(G)
- Try
- R(G);P_SPINR(G),XP(g)
- Threat
- R1(H),XP(f)
- Vars
- K(e);N_SPINP(f),P_SPINP(h),S_FLIGHT::R1(H),XP(f)
- S(c);N_GUARD,XS(F)::B(A),XR(d)
- P(i);N_GUARD,N_SPINP(f),P_SPINP(h),XR(H)::QAB(K),XP(h)
- Refutation
- P(i);
- Try
- R(H);N_PINP(f),P_PINP(h),XP(g)
- Threat
- R1(G),XP(f)
- Vars
- K(e);N_SPINP(h),P_SPINP(f),S_FLIGHT::R1(G),XP(f)
- S(c);N_GUARD,XS(F)::B(A),XR(d)
- P(f);XB(E)::R1(G)
- Refutation
- P(i);
- Try
- R(H);N_PINP(f),XP(h)
- Threat
- QAB(K)+R(H)
- Vars
- P(i);OGATE,P_SPINP(i),XR(H)::QAB(K),XP(i)
- P(i);SBLOCK::S(F)
- P(i);::QAB(K)+R(H),XP(i)
- Refutation
- S(a);
- Try
- Q(K);CHECK,XP(h)
- Vars
- P(i);::S(F)
- Refutation
- P(i);XQ(K)
- Try
- Actual
- Q(K);
- Threat
- S(F)
- Vars
- K(e);S_FLIGHT::QAB(K)+S(F),XS(c)
- S(c);N_GUARD,XQ(K)::B(A),XR(d)
- S(c);N_GUARD,XS(F)::B(A),XR(d)
- P(i);::S(F),XP(i)
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).