MESON Chess Problem Database
Problem Display
PID: 15862 (K1N5/pRN3nn/2k5/3R4/6r1/q6B/8/4QbB1 w - - 0 1)
Yashuk, V
2nd Prize, Rudenko-50 JT, 1988
#2
8 + 7
| 4393 | Uralski Problemist | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qb2
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qb4
- 2.Sxa7#
- 1...Qd6
- 2.Rxd6#
- 1...Qe7
- 2.Sxa7#
- 2.Sxe7#
- 1...Qa1
- 2.Se7#
- 2.Rd6#
- 1...Qa2
- 2.Se7#
- 2.Rd6#
- 1...Qb3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qc3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qd3
- 2.Sxa7#
- 2.Se7#
- 1...Qf3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qg3
- 2.Sxa7#
- 2.Se7#
- 1...Qxh3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qa4
- 2.Se7#
- 2.Rd6#
- 1...Qa5
- 2.Se7#
- 2.Rd6#
- 1...Qa6
- 2.Se7#
- 2.Rd6#
- 1...Rxg1
- 2.Bd7#
- 1...Rg2
- 2.Bd7#
- 1...Rg3
- 2.Bd7#
- 1...Ra4
- 2.Bd7#
- 1...Rb4
- 2.Se7#
- 2.Bd7#
- 2.Rc5#
- 2.Rd6#
- 1...Rc4
- 2.Bd7#
- 1...Rd4
- 2.Bd7#
- 1...Re4
- 2.Bd7#
- 1...Rf4
- 2.Bd7#
- 1...Rh4
- 2.Bd7#
- 1...Rg5
- 2.Bd7#
- 1...Rg6
- 2.Bd7#
- 1...Ba6
- 2.Sxa7#
- 1...Sf5
- 2.Qe8#
- 1...Sh5
- 2.Qe8#
- 1...Se8
- 2.Qxe8#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qc1
- Tries
- 1.Bc5?
- threat
- 2.Se7#
- 1...Qe3
- 2.Sxa7#
- 1...Re4
- 2.Bd7#
- 1...Sf5
- 2.Qe8#
- 1...Qxc5!
- threat
- 1.Qc3+?
- 1...Qc5
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 2.Qxc5#
- 1...Qxc3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Rc4
- 2.Bd7#
- 1...Bc4!
- 1...Qc5
- 1.Qb4?
- threat
- 2.Se7#
- 2.Rd6#
- 1...Qxb4
- 2.Sxa7#
- 1...Qd3
- 2.Sxa7#
- 2.Se7#
- 2.Qc5#
- 2.Qd6#
- 1...Qe3
- 2.Rd6#
- 2.Qd6#
- 1...Qg3
- 2.Sxa7#
- 2.Se7#
- 2.Qc5#
- 1...Rd4
- 2.Se7#
- 2.Bd7#
- 2.Rc5#
- 1...Re4
- 2.Bd7#
- 2.Rc5#
- 2.Rd6#
- 1...Rg6
- 2.Se7#
- 2.Bd7#
- 2.Rc5#
- 1...Se8
- 2.Se7#
- 1...Sf5!
- threat
- 1.Qa5?
- threat
- 2.Sxa7#
- 1...Qxa5
- 2.Se7#
- 2.Rd6#
- 1...Qd6
- 2.Rxd6#
- 1...Qc5
- 2.Qxc5#
- 1...Qe3
- 2.Rd6#
- 1...a6
- 2.Sa7#
- 2.Qb6#
- 1...Qf8!
- threat
- 1.Qc1+?
- 1...Qxc1
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qc5
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 2.Qxc5#
- 1...Qc3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Rc4
- 2.Bd7#
- 1...Bc4!
- 1...Qxc1
- 1.Qxf1?
- threat
- 2.Qb5#
- 1...Qb2
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qb4
- 2.Sxa7#
- 1...Qb3
- 2.Sxa7#
- 2.Se7#
- 2.Rd6#
- 1...Qd3
- 2.Sxa7#
- 2.Se7#
- 1...Qa4
- 2.Se7#
- 2.Rd6#
- 1...Qa5
- 2.Se7#
- 2.Rd6#
- 1...Qa6
- 2.Se7#
- 2.Rd6#
- 2.Qxa6#
- 1...Rb4
- 2.Se7#
- 2.Bd7#
- 2.Rc5#
- 2.Rd6#
- 1...Rc4
- 2.Bd7#
- 1...a6
- 2.Sa7#
- 1...Qc5!
- threat
- 1.Qe6+?
- 1...Qd6
- 2.Sxa7#
- 2.Se7#
- 2.Rc5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Sxe6!
- 1...Qd6
- 1.Bc5?
- Keys
- 1.Qe4!
- threat
- 2.Rd6#
- 1...Rxg1
- 2.Bd7#
- 2.Ra5#
- 2.Rdb5#
- 2.Re5#
- 2.Rg5#
- 2.Rh5#
- 1...Rxe4
- 2.Bd7#
- 1...Qd6
- 2.Rxd6#
- 1...Qe3
- 2.Se7#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 17
- Sets
- Q(b);N_GUARD::S(H),XP(e)
- Q(b);N_GUARD::R1(D),XQ(b)
- R(c);OGATE,XB(B)::B(C)
- R(c);OGATE::B(C)
- B(a);S_CUTQ(b)::S(H),XP(e)
- S(f);N_GUARD::QAB(A)
- S(f);N_GUARD::QAB(A),XS(f)
- P(e);S_CUTQ(b)::S(H)
- Tries
- Try
- B(B);
- Threat
- S(H)
- Vars
- Q(b);N_GUARD::S(H),XP(e)
- R(c);OGATE::B(C)
- S(f);N_GUARD::QAB(A)
- Refutation
- Q(b);XB(B)
- Try
- Q(A);CHECK
- Vars
- R(c);OGATE,P_SPINR(c)::B(C)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XQ(A)::S(H),XP(e)
- S(f);::S(H)
- Refutation
- S(f);
- Try
- Q(A);
- Threat
- S(H),XP(e)
- Vars
- Q(b);N_GUARD::R1(D),XQ(b)
- Q(b);N_GUARD::QAR1(A),XQ(b)
- Q(b);N_GUARD::R1(D)
- Refutation
- Q(b);P_PINS(H)
- Try
- Q(A);CHECK
- Vars
- R(c);OGATE,P_SPINR(c)::B(C)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(A);XB(a)
- Threat
- QAB1(A)
- Vars
- Q(b);N_GUARD::S(H),XP(e)
- R(c);OGATE::B(C)
- P(e);S_CUTQ(b)::S(H)
- Refutation
- Q(b);
- Try
- Q(A);CHECK
- Refutation
- S(f);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)+R(D),DCHECK
- Vars
- R(c);OGATE,XQ(A)::B(C)
- Q(b);::QAB(A)+R(D),DCHECK,XQ(b)
- Q(b);N_GUARD::S(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).