MESON Chess Problem Database
Problem Display
PID: 65115 (3R1b2/4pQ1P/3p1B2/6r1/pPB1k2N/K1pqp2N/2b4n/3R4 w - - 0 1)
Navon, Emanuel
2nd Prize, Probleemblad, 1989
#2
10 + 11
| 721 | Variantim | 1992 |
| 721 | Variantim | 1993 |
| 4827 | FIDE Album (1989-1991) | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Rd4#
- 1...Qe2
- 2.Rd4#
- 1...Qxc4
- 2.Qxc4#
- 1...Qd4
- 2.Rxd4#
- 1...Rg1
- 2.Qe6#
- 1...Rg2
- 2.Qe6#
- 1...Rg3
- 2.Qe6#
- 1...Rg4
- 2.Qe6#
- 1...Rg6
- 2.Qe6#
- 2.Qxg6#
- 1...Rg7
- 2.Qe6#
- 1...Rg8
- 2.Qe6#
- 1...Bb3
- 2.Bxd3#
- 1...Qf1
- Tries
- 1.Bxc3?
- threat
- 2.Sxg5#
- 2.Qf4#
- 1...Qd4
- 2.Qf4#
- 1...e2
- 2.Qf4#
- 1...Qf1
- 2.Sxg5#
- 1...Qd5
- 2.Qf4#
- 1...Rg1
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg2
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg3
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg4
- 2.Qe6#
- 2.Qf5#
- 1...Ra5
- 2.Qf4#
- 1...Rb5
- 2.Qf4#
- 1...Rc5
- 2.Qf4#
- 1...Rd5
- 2.Qf4#
- 1...Re5
- 2.Qf4#
- 1...Rf5
- 2.Qxf5#
- 1...Rh5
- 2.Qf4#
- 1...Rg6
- 2.Qxg6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg7
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg8
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Bh6
- 2.Qf4#
- 1...Sf3
- 2.Qxf3#
- 2.Qf4#
- 1...e5
- 2.Sxg5#
- 1...Qxc3+!
- threat
- 1.Bd4?
- threat
- 2.Qf4#
- 1...Kxd4
- 2.Qf4#
- 1...Qxc4
- 2.Sxg5#
- 1...Qf1
- 2.Sxg5#
- 1...Rg4
- 2.Qd5#
- 1...e5
- 2.Qd5#
- 1...Rf5!
- threat
- 1.Bxg5?
- threat
- 2.Qf4#
- 1...Kd4
- 2.Qd5#
- 2.Qf4#
- 1...Ke5
- 2.Qf4#
- 1...Qf1
- 2.Qd5#
- 2.Qe6#
- 1...e5!
- threat
- 1.Bg7?
- threat
- 2.Sxg5#
- 2.Qf4#
- 1...Rxg7
- 2.Qf4#
- 1...Bxg7
- 2.Qf4#
- 1...Re5
- 2.Qf4#
- 1...e2
- 2.Qf4#
- 1...Qf1
- 2.Sxg5#
- 2.Rd4#
- 1...Qd5
- 2.Qf4#
- 1...Rg1
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg2
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg3
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg4
- 2.Qe6#
- 2.Qf5#
- 1...Ra5
- 2.Qf4#
- 1...Rb5
- 2.Qf4#
- 1...Rc5
- 2.Qf4#
- 1...Rd5
- 2.Qf4#
- 1...Rf5
- 2.Qxf5#
- 1...Rh5
- 2.Qf4#
- 1...Rg6
- 2.Qxg6#
- 2.Qf4#
- 2.Qf5#
- 1...Sf3
- 2.Qxf3#
- 2.Qf4#
- 1...e5!
- threat
- 1.Bh8?
- threat
- 2.Sxg5#
- 2.Qf4#
- 1...Re5
- 2.Qf4#
- 1...Rg7
- 2.Qf4#
- 1...Bg7
- 2.Qf4#
- 1...e2
- 2.Qf4#
- 1...Qf1
- 2.Sxg5#
- 2.Rd4#
- 1...Qd5
- 2.Qf4#
- 1...Rg1
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg2
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg3
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg4
- 2.Qe6#
- 2.Qf5#
- 1...Ra5
- 2.Qf4#
- 1...Rb5
- 2.Qf4#
- 1...Rc5
- 2.Qf4#
- 1...Rd5
- 2.Qf4#
- 1...Rf5
- 2.Qxf5#
- 1...Rh5
- 2.Qf4#
- 1...Rg6
- 2.Qxg6#
- 2.Qf4#
- 2.Qf5#
- 1...Rg8
- 2.Qe6#
- 2.Qf4#
- 2.Qf5#
- 1...Bh6
- 2.Qf4#
- 1...Sf3
- 2.Qxf3#
- 2.Qf4#
- 1...e5!
- threat
- 1.Qg6+?
- 1...Rf5
- 2.Qxf5#
- 1...Rxg6!
- 1...Rf5
- 1.Bxc3?
- Keys
- 1.Be5!
- threat
- 2.Qf4#
- 1...Kxe5
- 2.Qf4#
- 1...dxe5
- 2.Sxg5#
- 1...Qf1
- 2.Qd5#
- 1...Rg4
- 2.Qf5#
- 1...Rf5
- 2.Qxf5#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(d);OGATE::R1(A)
- Q(d);OGATE,XB(E)::QAR2(H),XQ(d)
- Q(d);OGATE::R1(A),XQ(d)
- R(h);N_GUARD::QAR2(H)
- B(a);N_GUARD::B(E),XQ(d)
- Tries
- Try
- B(G);P_SPINB(G),XP(c)
- Threat
- DUALS(2)
- Vars
- Q(d);N_PINB(G)::QAR1(H)
- P(e);::QAR1(H)
- Q(d);N_PINB(G)::S(C),XR(h)
- R(h);::QAR1(H)
- R(h);N_GUARD::QAB1(H),XR(h)
- B(k);::QAR1(H)
- P(j);::S(C),XR(h)
- Refutation
- Q(d);CHECK,XB(G)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- K(g);P-FLIGHT,P_SPINP(i),P_SPINQ(d),XB(G)::QAR2(H)
- Q(d);XB(E)::S(C),XR(h)
- Q(d);::S(C),XR(h)
- R(h);N_GUARD::QAB1(H)
- P(j);S_CUTR(h)::QAB1(H)
- Refutation
- R(h);
- Try
- B(G);XR(h)
- Threat
- QAR1(H)
- Vars
- K(g);P-FLIGHT::QAB1(H)
- Refutation
- P(j);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(h);XB(G)::QAR1(H)
- B(k);XB(G)::QAR1(H)
- R(h);::QAR1(H)
- P(e);::QAR1(H)
- Q(d);::QAR1(H)
- R(h);N_GUARD::QAB1(H),XR(h)
- Refutation
- P(j);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- R(h);::QAR1(H)
- B(k);::QAR1(H)
- P(e);::QAR1(H)
- Q(d);::QAR1(H)
- R(h);N_GUARD::QAB1(H),XR(h)
- Refutation
- P(j);
- Try
- Q(H);CHECK
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAB1(H),XR(h)
- Refutation
- R(h);XQ(H)
- Try
- Actual
- B(G);
- Threat
- QAR1(H)
- Vars
- K(g);P-FLIGHT,XB(G)::QAB1(H)
- P(i);SBLOCK,XB(G)::S(C),XR(h)
- Q(d);N_GUARD::QAB1(H)
- R(h);N_GUARD::QAB1(H)
- R(h);N_GUARD::QAB1(H),XR(h)
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).