MESON Chess Problem Database
Problem Display
PID: 102911 (5B2/p2p2p1/1p4K1/N3p3/3k4/pQ1p1B2/qn4N1/1nR5 w - - 0 1)
Goldschmidt, Josef
Savir-Silberman, Zalman
Al Hamishmar, 1967
#2
7 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxb3
- 2.Sxb3#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...e4
- 2.Bxg7#
- 1...bxa5
- 2.Bc5#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qxb3
- Tries
- 1.Kg5?
- 1...Qxb3
- 2.Sxb3#
- 1...bxa5
- 2.Bc5#
- 1...e4
- 2.Bxg7#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...g6!
- 1...Qxb3
- 1.Kxg7?
- 1...Qxb3
- 2.Sxb3#
- 1...bxa5
- 2.Bc5#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...e4!
- 1...Qxb3
- 1.Bxa3?
- 1...Qxb3
- 2.Sxb3#
- 1...Qxa3
- 2.Qd5#
- 1...Sxa3
- 2.Qc3#
- 1...bxa5
- 2.Bc5#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...e4!
- 1...Qxb3
- 1.Bd6?
- 1...Qxb3
- 2.Sxb3#
- 1...bxa5
- 2.Bc5#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...e4!
- 1...Qxb3
- 1.Be7?
- 1...Qxb3
- 2.Sxb3#
- 1...bxa5
- 2.Bc5#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...e4!
- 1...Qxb3
- 1.Rc5?
- threat
- 2.Rd5#
- 1...Qxb3
- 2.Sxb3#
- 1...Sc3
- 2.Qxc3#
- 1...d5
- 2.Sc6#
- 2.Rxd5#
- 1...bxc5!
- threat
- 1.Rc7?
- threat
- 2.Rxd7#
- 1...Qxb3
- 2.Sxb3#
- 1...e4
- 2.Bxg7#
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Rxc4#
- 1...d5
- 2.Sc6#
- 1...d6!
- threat
- 1.Rc8?
- 1...Qxb3
- 2.Sxb3#
- 1...bxa5
- 2.Bc5#
- 1...e4
- 2.Bxg7#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6!
- 1...Qxb3
- 1.Qxa2?
- threat
- 2.Sb3#
- 2.Qd5#
- 1...bxa5
- 2.Bc5#
- 2.Qd5#
- 1...d2
- 2.Qd5#
- 1...e4
- 2.Bxg7#
- 1...Sd2
- 2.Qd5#
- 1...Sc4
- 2.Sb3#
- 2.Rxc4#
- 2.Qxc4#
- 1...d5
- 2.Sb3#
- 2.Sc6#
- 2.Qxd5#
- 1...Sc3!
- threat
- 1.Qxb2+?
- 1...Qxb2
- 2.Rc4#
- 1...Sc3
- 2.Qxc3#
- 1...axb2!
- 1...Qxb2
- 1.Qb4+?
- 1...Qc4
- 2.Sb3#
- 1...Sc4!
- 1...Qc4
- 1.Kg5?
- Keys
- 1.Rc2!
- 1...Qxb3
- 2.Sxb3#
- 1...dxc2
- 2.Qe3#
- 1...bxa5
- 2.Bc5#
- 1...e4
- 2.Bxg7#
- 1...Qa1
- 2.Qd5#
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd1
- 2.Rc4#
- 1...Sa4
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...d2
- 2.Qe3#
- 1...b5
- 2.Bc5#
- 1...a6
- 2.Qxb6#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Qxb3
- 1.Rc2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(b);XQ(C)::S(E),XQ(b)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(g);OGATEB::B(G),XP(k)
- P(h);N_GUARD,XS(E)::B(G)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(E)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(h);N_GUARD,XS(E)::B(G)
- P(g);OGATEB::B(G),XP(k)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(E)
- Refutation
- P(k);
- Try
- K(F);P-FLIGHT,XP(k)
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(h);N_GUARD,XS(E)::B(G)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(E)
- Refutation
- P(g);
- Try
- B(G);XP(d)
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- Q(b);N_GUARD,XB(G)::QAR1(C)
- S(a);N_GUARD,XB(G)::QAB1(C)
- P(h);N_GUARD,XS(E)::B(G)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(E)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(h);N_GUARD,XS(E)::B(G)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(h);N_GUARD,XS(E)::B(G)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(E)
- Refutation
- P(g);
- Try
- R(A);
- Threat
- R1(A)
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(h);XR(A)
- Try
- R(A);
- Threat
- R(A),XP(j)
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(g);OGATEB::B(G),XP(k)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A),XS(c)
- P(j);N_GUARD::S(E)
- Refutation
- P(j);
- Try
- R(A);
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(h);N_GUARD,XS(E)::B(G)
- P(g);OGATEB::B(G),XP(k)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(E)
- Refutation
- P(j);
- Try
- Q(C);XQ(b)
- Threat
- DUALS(2)
- Vars
- P(e);::QAR1(C)
- P(g);OGATEB::B(G),XP(k)
- S(a);::QAR1(C)
- Refutation
- S(a);
- Try
- Q(C);CHECK,XS(c)
- Vars
- Q(b);XQ(C)::R1(A)
- S(a);N_GUARD,P_SPINS(a)::QAB1(C),XS(a)
- Refutation
- P(d);XQ(C)
- Try
- Q(C);CHECK
- Vars
- Q(b);P_SPINQ(b)::S(E)
- Refutation
- S(c);P_SPINS(c)
- Try
- Actual
- R(A);
- Vars
- Q(b);XQ(C)::S(E),XQ(b)
- P(e);OGATE,XR(A)::QAB1(C)
- P(h);N_GUARD,XS(E)::B(G)
- P(g);OGATEB::B(G),XP(k)
- Q(b);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(c);N_GUARD::R1(A)
- S(c);N_GUARD::R1(A),XS(c)
- P(e);OGATE::QAB1(C)
- P(h);N_GUARD::B(G)
- P(i);N_GUARD::QAB(C),XP(h)
- P(j);N_GUARD::S(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).