MESON Chess Problem Database
Problem Display
PID: 231231 (8/8/1B6/1Nr1Qpp1/1P2p1N1/RB3kP1/2p2p1P/5K1n w - - 0 1)
Zilahi, Zoltan
Schackvarlden, 1927
#2
10 + 8
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Qxf5#
- 1...Rc4
- 2.Qxf5#
- 1...Rxe5
- 2.Sxe5#
- 1...Rc6
- 2.Qxf5#
- 1...Rc7
- 2.Qxf5#
- 1...Rc8
- 2.Qxf5#
- 1...Sxg3+
- 2.Qxg3#
- 1...c1Q+
- 2.Bd1#
- 1...c1S
- 2.Bd1#
- 1...c1B
- 2.Bd1#
- 1...c1R+
- 2.Bd1#
- 1...Rc3
- Tries
- 1.Sxf2?
- 1...Sxg3+
- 2.Qxg3#
- 1...c1Q+
- 2.Bd1#
- 1...c1R+
- 2.Bd1#
- 1...Ke3
- 2.Qc3#
- 1...Rxb5
- 2.Bd5#
- 1...Rxe5
- 2.Bd5#
- 1...c1S
- 2.Bd1#
- 1...c1B
- 2.Bd1#
- 1...Rc3
- 2.Qxf5#
- 1...Rc4
- 2.Qxf5#
- 1...Rd5
- 2.Bxd5#
- 1...Rc6
- 2.Qxf5#
- 1...Rc7
- 2.Qxf5#
- 1...Rc8
- 2.Qxf5#
- 1...e3
- 2.Sd4#
- 1...f4
- 2.Qxe4#
- 1...g4
- 2.Qf4#
- 1...Sxf2!
- 1...Sxg3+
- 1.Sh6?
- 1...Sxg3+
- 2.Qxg3#
- 1...c1Q+
- 2.Bd1#
- 1...c1R+
- 2.Bd1#
- 1...Ke3
- 2.Qc3#
- 1...Rxb5
- 2.Bd5#
- 1...Rxe5
- 2.Bd5#
- 1...c1S
- 2.Bd1#
- 1...c1B
- 2.Bd1#
- 1...Rc3
- 2.Qxf5#
- 1...Rc4
- 2.Qxf5#
- 1...Rd5
- 2.Bxd5#
- 1...Rc6
- 2.Qxf5#
- 1...Rc7
- 2.Qxf5#
- 1...Rc8
- 2.Qxf5#
- 1...e3
- 2.Sd4#
- 1...g4
- 2.Qf4#
- 1...f4!
- 1...Sxg3+
- 1.Bxc2+?
- 1...Rc3
- 2.Bd1#
- 2.Qxf5#
- 1...e3
- 2.Bd1#
- 1...Kxg4!
- 1...Rc3
- 1.Bc4+?
- 1...e3
- 2.Be2#
- 1...Kxg4!
- 1...e3
- 1.Bd5+?
- 1...Rc3
- 2.Qxf5#
- 1...Kxg4!
- 1...Rc3
- 1.Sxf2?
- Keys
- 1.Sf6!
- 1...Sxg3+
- 2.Qxg3#
- 1...c1Q+
- 2.Bd1#
- 1...c1R+
- 2.Bd1#
- 1...Ke3
- 2.Qc3#
- 1...Rxb5
- 2.Bd5#
- 1...Rxe5
- 2.Bd5#
- 1...c1S
- 2.Bd1#
- 1...c1B
- 2.Bd1#
- 1...Rc3
- 2.Qxf5#
- 1...Rc4
- 2.Qxf5#
- 1...Rd5
- 2.Bxd5#
- 1...Rc6
- 2.Qxf5#
- 1...Rc7
- 2.Qxf5#
- 1...Rc8
- 2.Qxf5#
- 1...e3
- 2.Sd4#
- 1...f4
- 2.Qxe4#
- 1...g4
- 2.Qf4#
- 1...Sxg3+
- 1.Sf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::QAR2(I),XP(g)
- R(f);XQ(I)::S(G),XR(f)
- S(a);CHECK,OGATE,XP(E)::QAR1(I),XS(a)
- P(b);CHECK,OGATE::R(C)+B(D),DCHECK
- P(b);OGATE::R(C)+B(D),DCHECK
- Tries
- Try
- S(G);XP(c)
- Vars
- S(a);CHECK,OGATE,XP(E)::QAR1(I),XS(a)
- P(b);CHECK,OGATE::R(C)+B(D),DCHECK
- K(d);P-FLIGHT,P_SPINP(e),P_SPINR(f)::QAR2(I)
- R(f);N_GUARD,XS(H)::R(C)+B(D)
- R(f);N_GUARD,XQ(I)::R(C)+B(D)
- P(b);OGATE::R(C)+B(D),DCHECK
- R(f);N_GUARD::QAR2(I),XP(g)
- R(f);N_GUARD::R(C)+B(D),XR(f)
- P(e);::S(H)
- P(g);N_GUARD::QAB1(I),XP(e)
- P(h);N_GUARD::QAR1(I)
- Refutation
- S(a);XS(G)
- Try
- S(G);
- Vars
- S(a);CHECK,OGATE,XP(E)::QAR1(I),XS(a)
- P(b);CHECK,OGATE::R(C)+B(D),DCHECK
- K(d);P-FLIGHT,P_SPINP(e),P_SPINR(f)::QAR2(I)
- R(f);N_GUARD,XS(H)::R(C)+B(D)
- R(f);N_GUARD,XQ(I)::R(C)+B(D)
- P(b);OGATE::R(C)+B(D),DCHECK
- R(f);N_GUARD::QAR2(I),XP(g)
- R(f);N_GUARD::R(C)+B(D),XR(f)
- P(e);::S(H)
- P(h);N_GUARD::QAR1(I)
- Refutation
- P(g);
- Try
- B(D);CHECK,XP(b)
- Vars
- P(e);P_SPINP(e)::B(D)
- Refutation
- K(d);S_FLIGHT,XS(G)
- Try
- B(D);CHECK
- Vars
- P(e);P_SPINP(e)::B(D)
- Refutation
- K(d);S_FLIGHT,XS(G)
- Try
- B(D);CHECK,P_PINP(e)
- Vars
- R(f);P_SPINR(f)::QAR2(I),XP(g)
- Refutation
- K(d);N_SPINP(e),S_FLIGHT,XS(G)
- Try
- Actual
- S(G);
- Vars
- S(a);CHECK,OGATE,XP(E)::QAR1(I),XS(a)
- P(b);CHECK,OGATE::R(C)+B(D),DCHECK
- K(d);P-FLIGHT,P_SPINP(e),P_SPINR(f)::QAR2(I)
- R(f);N_GUARD,XS(H)::R(C)+B(D)
- R(f);N_GUARD,XQ(I)::R(C)+B(D)
- P(b);OGATE::R(C)+B(D),DCHECK
- R(f);N_GUARD::QAR2(I),XP(g)
- R(f);N_GUARD::R(C)+B(D),XR(f)
- P(e);::S(H)
- P(g);N_GUARD::QAB1(I),XP(e)
- P(h);N_GUARD::QAR1(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).