MESON Chess Problem Database
Problem Display
PID: 144016 (8/q4pK1/2B2R2/4k1N1/3R4/1N1r4/3b1p2/3Qr3 w - - 0 1)
Kisis, Imants J
2nd Prize, Sahs 03. TT, 1970
#2
7 + 7
| 7551 | Vratnica-64 | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Sxf7#
- 1...Qc5
- 2.Sxf7#
- 1...Qb6
- 2.Sxf7#
- 1...Qb8
- 2.Sxf7#
- 1...Qa1
- 2.Sxf7#
- 1...Qa2
- 2.Sxf7#
- 1...Qa3
- 2.Sxf7#
- 1...Qa4
- 2.Sxf7#
- 1...Qa5
- 2.Sxf7#
- 1...Qa6
- 2.Sxf7#
- 1...Qa8
- 2.Sxf7#
- 1...Rxd1
- 2.Re4#
- 1...Rf1
- 2.Re4#
- 1...Rg1
- 2.Re4#
- 1...Rh1
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Rxb3
- 2.Rd5#
- 1...Rc3
- 2.Rd5#
- 1...Re3
- 2.Rd5#
- 1...Rf3
- 2.Sxf3#
- 2.Rd5#
- 1...Rg3
- 2.Rd5#
- 1...Rh3
- 2.Rd5#
- 1...Rxd4
- 2.Sf3#
- 1...Be3
- 2.Sf3#
- 2.Re4#
- 1...Qxd4
- Tries
- 1.Rxd3?
- threat
- 2.Sf3#
- 2.Rd5#
- 1...f1Q
- 2.Rd5#
- 1...f1R
- 2.Rd5#
- 1...Qe3
- 2.Sxf7#
- 2.Rd5#
- 1...Qd4
- 2.Sf3#
- 2.Sxf7#
- 1...Qc5
- 2.Sf3#
- 2.Sxf7#
- 1...Qa5
- 2.Sf3#
- 2.Sxf7#
- 1...Qd7
- 2.Sf3#
- 1...Rg1
- 2.Rd5#
- 1...Re3
- 2.Rd5#
- 1...Bxg5!
- threat
- 1.Re6+?
- 1...Kf5
- 2.Qg4#
- 1...fxe6+!
- 1...Kf5
- 1.Qe2+?
- 1...Re3
- 2.Sf3#
- 2.Rd5#
- 1...Be3
- 2.Sf3#
- 2.Re4#
- 1...Rxe2!
- 1...Re3
- 1.Qf3?
- threat
- 2.Rf5#
- 2.Qd5#
- 2.Qf5#
- 1...Qxd4
- 2.Sxf7#
- 2.Qf5#
- 1...Rxb3
- 2.Rd5#
- 2.Qd5#
- 1...Rxf3
- 2.Sxf3#
- 2.Rd5#
- 1...Rxd4
- 2.Qf5#
- 1...Bxg5
- 2.Qd5#
- 2.Qf5#
- 1...f1Q
- 2.Rf5#
- 2.Qd5#
- 1...f1R
- 2.Rf5#
- 2.Qd5#
- 1...Qc5
- 2.Sxf7#
- 2.Rf5#
- 2.Qf5#
- 1...Qa5
- 2.Sxf7#
- 2.Rf5#
- 2.Qf5#
- 1...Re4
- 2.Rxe4#
- 2.Rf5#
- 2.Qxe4#
- 2.Qf5#
- 1...Bf4
- 2.Qd5#
- 2.Qxf4#
- 1...Qd7!
- threat
- 1.Qa1?
- threat
- 2.Re4#
- 2.Rd5#
- 1...Qxd4
- 2.Sxf7#
- 1...Qxa1
- 2.Sxf7#
- 1...Rxa1
- 2.Re4#
- 1...Rxd4
- 2.Sf3#
- 1...Bxg5
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 2.Rd5#
- 1...Rc3
- 2.Rd5#
- 1...Bc3!
- threat
- 1.Rxd3?
- Keys
- 1.Qh5!
- threat
- 2.Sf3#
- 2.Sxf7#
- 1...Rxb3
- 2.Sf3#
- 2.Rd5#
- 1...Bxg5
- 2.Qxg5#
- 1...Rg1
- 2.Re4#
- 1...Rf3
- 2.Sxf3#
- 2.Sxf7#
- 2.Rd5#
- 1...Rg3
- 2.Rd5#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 20
- Sets
- Q(f);N_GUARD,XR(C)::S(D),XP(g)
- Q(f);N_GUARD::S(D),XP(g)
- R(a);N_GUARD,XQ(A)::R1(C)
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD,P_PINS(D)::R1(C)
- R(a);N_GUARD::R1(C),XR(a)
- R(d);N_GUARD,XS(B)::R1(C)
- R(d);N_GUARD::R1(C)
- R(d);N_GUARD,P_PINS(D)::R1(C)
- R(d);N_GUARD,XR(C)::S(D)
- Tries
- Try
- R(C);XR(d)
- Threat
- DUALS(2)
- Vars
- P(c);::R1(C)
- Q(f);::S(D)
- R(a);P_PINS(D)::R1(C)
- R(a);::R1(C)
- Refutation
- B(b);XS(D)
- Try
- R(F);CHECK
- Vars
- K(e);P-FLIGHT::QAB1(A)
- Refutation
- P(g);CHECK,XR(F)
- Try
- Q(A);CHECK
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(d);XR(C)::QAR1(A)
- Refutation
- Q(f);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,P_SPINQ(f),XR(C)::S(D),XP(g)
- Q(f);N_GUARD,XQ(A)::S(D),XP(g)
- R(a);XQ(A)::R1(C)
- R(d);N_GUARD,P_SPINR(d),XR(C)::S(D)
- B(b);XS(D)::QAB(A)+R(C),DCHECK
- R(d);::R1(C)
- Refutation
- B(b);
- Try
- Actual
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,P_SPINB(b),XS(D)::QAR2(A),XB(b)
- R(a);N_GUARD,P_PINS(D)::R1(C)
- R(d);N_GUARD,P_PINS(D)::R1(C)
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).