MESON Chess Problem Database
Problem Display
PID: 158620 (4R3/3R4/4b3/4p1n1/1K1PkpB1/2p4r/2P3N1/5Q2 w - - 0 1)
Aloni, Yoel
Match: Germany - Israel, 1978
#2
8 + 7
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qe2#
- 2.Qd3#
- 1...Rh2
- 2.Qe2#
- 2.Qd3#
- 2.Qe1#
- 1...Rd3
- 2.Qxd3#
- 2.cxd3#
- 1...Rh4
- 2.Qe2#
- 2.Qd3#
- 2.Qe1#
- 1...Rh5
- 2.Qe2#
- 2.Qd3#
- 2.Qe1#
- 1...Rh6
- 2.Qe2#
- 2.Qd3#
- 2.Qe1#
- 1...Rh7
- 2.Qe2#
- 2.Qd3#
- 2.Qe1#
- 1...Rh8
- 2.Qe2#
- 2.Qd3#
- 2.Qe1#
- 1...Ba2
- 2.Rxe5#
- 2.Qxf4#
- 1...Bb3
- 2.Rxe5#
- 2.Qxf4#
- 1...Bc4
- 2.Rxe5#
- 2.Qxf4#
- 1...Bxg4
- 2.Rxe5#
- 2.Qxf4#
- 1...Bd5
- 2.Qxf4#
- 1...Bf5
- 2.Rxe5#
- 2.Qxf4#
- 1...Bf7
- 2.Rxe5#
- 2.Qxf4#
- 1...Bg8
- 2.Rxe5#
- 2.Qxf4#
- 1...Sf3
- 2.Qe2#
- 2.Qd3#
- 1...f3
- 2.Qd3#
- 2.Qe1#
- 1...exd4
- 2.Qxf4#
- 1...Rh1
- Tries
- 1.Bxh3?
- threat
- 2.Qe2#
- 2.Qd3#
- 1...Bxh3
- 2.Rxe5#
- 2.Qd3#
- 2.Qxf4#
- 1...Sxh3
- 2.Qd3#
- 1...exd4
- 2.Qe2#
- 2.Qxf4#
- 1...Bg4
- 2.Rxe5#
- 2.Qd3#
- 2.Qxf4#
- 1...Bd5
- 2.Qd3#
- 2.Qxf4#
- 1...Bc4
- 2.Rxe5#
- 2.Qxf4#
- 1...f3
- 2.Qd3#
- 2.Qe1#
- 1...Bxd7!
- threat
- 1.Bf5+?
- 1...Bxf5
- 2.Rxe5#
- 2.Qxf4#
- 1...Kxf5!
- 1...Bxf5
- 1.Rxe6?
- threat
- 2.Rxe5#
- 2.Qxf4#
- 1...Rf3
- 2.Rxe5#
- 1...Sf3
- 2.Qe2#
- 2.Qd3#
- 1...Sf7
- 2.Qxf4#
- 1...f3
- 2.Rxe5#
- 2.Qd3#
- 2.Qe1#
- 1...Sxe6!
- threat
- 1.Qc4?
- threat
- 2.d5#
- 1...Bxc4
- 2.Rxe5#
- 1...exd4
- 2.Qd5#
- 2.Qxd4#
- 1...Rd3
- 2.Qxd3#
- 2.cxd3#
- 1...Bd5
- 2.Rxe5#
- 2.Qxd5#
- 1...Sf3
- 2.Qe2#
- 2.Qd3#
- 1...Bxg4!
- threat
- 1.dxe5?
- threat
- 2.Qxf4#
- 1...Kxe5
- 2.Qxf4#
- 1...Bxd7
- 2.Qc4#
- 1...Sf3
- 2.Qe2#
- 1...f3
- 2.Qe1#
- 1...Rf3!
- threat
- 1.Bxh3?
- Keys
- 1.d5!
- threat
- 2.Qc4#
- 1...Kd4
- 2.Qc4#
- 1...Bxg4
- 2.Qxf4#
- 1...Bxd5
- 2.Qxf4#
- 1...Rd3
- 2.Qxd3#
- 1...Sf3
- 2.Qd3#
- threat
- 1.d5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- B(g);P_SPINP(e)::QAR1(A),XP(d)
- P(e);N_GUARD,P_SPINB(g),XP(E)::QAR1(A),XP(d)
- Tries
- Try
- B(F);XR(b)
- Threat
- DUALS(2)
- Vars
- S(f);XB(F)::QAB1(A)
- Refutation
- B(g);P_SPINP(e),XR(G)
- Try
- B(F);CHECK
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XB(F)
- Try
- R(H);P_PINP(e),XB(g)
- Threat
- DUALS(2)
- Vars
- R(b);::R1(H),XP(e)
- S(f);::QAR1(A),XP(d)
- Refutation
- S(f);N_SPINP(e),XR(H)
- Try
- Q(A);
- Threat
- QAR(A)+P(E)
- Vars
- B(g);OGATE,P_SPINP(e),XQ(A)::R1(H),XP(e)
- Refutation
- B(g);P_SPINP(e),XB(F)
- Try
- P(E);XP(e)
- Threat
- QAR1(A),XP(d)
- Vars
- K(c);P-FLIGHT,P_SPINB(g),XP(E)::QAB1(A),XP(d)
- B(g);N_GUARD,XR(G)::QAR2(A)
- S(f);S_CUTR(b)::QAR2(A)
- P(d);S_CUTR(b)::QAR(A)
- Refutation
- R(b);
- Try
- Actual
- P(E);
- Threat
- QAR2(A)
- Vars
- K(c);P-FLIGHT::QAR1(A)
- B(g);P_SPINP(e),XB(F)::QAR1(A),XP(d)
- B(g);P_SPINP(e),XP(E)::QAR1(A),XP(d)
- R(b);N_GUARD::QAB1(A),XR(b)
- S(f);S_CUTR(b)::QAB1(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).