MESON Chess Problem Database
Problem Display
PID: 235065 (B1K5/7Q/N1NPRb1R/pPPk4/8/1P4B1/1n2p1q1/5r2 w - - 0 1)
Shanshin, Valery Yurevich
Hlas l'udu, 1990
#2
12 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kxe6
- 2.Sc7#
- 2.Sd4#
- 2.Sd8#
- 1...Qh3
- 2.Qe4#
- 1...Qe4
- 2.Qxe4#
- 1...Qg1
- 2.Qe4#
- 1...Qf2
- 2.Qe4#
- 1...Qh2
- 2.Qe4#
- 1...Qxg3
- 2.Qe4#
- 1...Rf3
- 2.Qe4#
- 1...Bd4
- 2.Scb4#
- 2.Sxa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sd8#
- 1...Bh4
- 2.Re5#
- 1...Be5
- 2.Rxe5#
- 1...Bg5
- 2.Re5#
- 1...Be7
- 2.Re5#
- 1...Bd8
- 2.Re5#
- 1...Kxe6
- Tries
- 1.Scb4+?
- 1...Kxe6
- 2.Sc7#
- 2.Qd7#
- 1...Kd4!
- 1...Kxe6
- 1.Sxa5+?
- 1...Kxe6
- 2.Sc7#
- 2.Qd7#
- 1...Kd4!
- 1...Kxe6
- 1.Se5+?
- 1...Kxe6
- 2.Sc7#
- 2.Qd7#
- 1...Kd4!
- 1...Kxe6
- 1.Sa7+?
- 1...Kxe6
- 2.Sc7#
- 2.Qd7#
- 1...Kd4!
- 1...Kxe6
- 1.Se7+?
- 1...Kxe6
- 2.Sc7#
- 2.Qg8#
- 1...Kd4!
- 1...Kxe6
- 1.Scb8+?
- 1...Kxe6
- 2.Sc7#
- 2.Qd7#
- 1...Kd4!
- 1...Kxe6
- 1.Bf2?
- threat
- 2.Sc7#
- 2.Sd4#
- 2.Sd8#
- 1...Qg8+
- 2.Sd8#
- 1...Kxe6
- 2.Sc7#
- 1...Qxf2
- 2.Qe4#
- 1...Qg7
- 2.Qe4#
- 1...Bd4
- 2.Scb4#
- 2.Sxd4#
- 2.Sxa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sd8#
- 1...Bd8
- 2.Scb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sxd8#
- 2.Re5#
- 2.Qf5#
- 1...Rxf2!
- threat
- 1.Be5?
- threat
- 2.Sd4#
- 2.Sd8#
- 1...Qg8+
- 2.Sd8#
- 1...Kxe6
- 2.Sc7#
- 1...Bxe5
- 2.Rxe5#
- 1...Bd8
- 2.Scb4#
- 2.Sd4#
- 2.Sxa5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sxd8#
- 1...Qg7!
- threat
- 1.Rh4?
- threat
- 2.Sd4#
- 2.Sd8#
- 1...Kxe6
- 2.Sc7#
- 1...Bxh4
- 2.Re5#
- 1...Qe4
- 2.Qxe4#
- 1...Bd4
- 2.Sxd4#
- 2.Sd8#
- 1...Bd8
- 2.Sd4#
- 2.Sxd8#
- 2.Re5#
- 1...Rf4!
- threat
- 1.Rh5+?
- 1...Kxe6
- 2.Sc7#
- 2.Qg8#
- 2.Qd7#
- 1...Be5
- 2.Rhxe5#
- 2.Rexe5#
- 1...Bg5
- 2.Re5#
- 1...Rf5!
- 1...Kxe6
- 1.Qc2?
- threat
- 2.Sc7#
- 1...Kxe6
- 2.Sd8#
- 1...Bd8
- 2.Re5#
- 1...Sc4
- 2.Qxc4#
- 1...Bc3!
- threat
- 1.Qd3+?
- 1...Kxe6
- 2.Sd8#
- 1...Bd4
- 2.Scb4#
- 2.Sxd4#
- 2.Sxa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sd8#
- 2.Re5#
- 2.Qxd4#
- 1...Sxd3!
- 1...Kxe6
- 1.Qf5+?
- 1...Be5
- 2.Rxe5#
- 2.Qxe5#
- 1...Rxf5!
- 1...Be5
- 1.Qg8?
- threat
- 2.Rxe2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...Qxg3
- 2.Re5#
- 1...Be5
- 2.Rxe5#
- 1...e1Q
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 1...e1S
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...e1B
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...e1R
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 1...Qe4
- 2.Re5#
- 1...Bc3
- 2.Re5#
- 1...Bd4
- 2.Scb4#
- 2.Sxa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sd8#
- 2.Re5#
- 1...Bh4
- 2.Re5#
- 1...Bg5
- 2.Re5#
- 1...Be7
- 2.Re5#
- 1...Bg7
- 2.Re5#
- 1...Bd8
- 2.Re5#
- 1...Bh8
- 2.Re5#
- 1...Qh3!
- threat
- 1.Qf7?
- threat
- 2.Rxe2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...Be5
- 2.Rxe5#
- 1...e1Q
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 1...e1S
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...e1B
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 2.Re7#
- 2.Re8#
- 1...e1R
- 2.Rxe1#
- 2.Re2#
- 2.Re3#
- 2.Re5#
- 1...Qe4
- 2.Re5#
- 1...Bc3
- 2.Re5#
- 1...Bd4
- 2.Scb4#
- 2.Sxa5#
- 2.Se5#
- 2.Sa7#
- 2.Se7#
- 2.Scb8#
- 2.Sd8#
- 2.Re5#
- 1...Bh4
- 2.Re5#
- 1...Bg5
- 2.Re5#
- 1...Be7
- 2.Re5#
- 1...Bg7
- 2.Re5#
- 1...Bd8
- 2.Re5#
- 1...Bh8
- 2.Re5#
- 1...Qh3!
- threat
- 1.Scb4+?
- Keys
- 1.Qa7!
- threat
- 2.Sc7#
- 1...Kxe6
- 2.Sd4#
- 1...Be5
- 2.Rxe5#
- 1...Bd8
- 2.Re5#
- threat
- 1.Qa7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD,P_PINR(H)::QAB1(J)
- Q(d);N_GUARD::QAB1(J),XQ(d)
- Q(d);N_GUARD::QAB1(J)
- Q(d);N_GUARD,XB(B)::QAB1(J)
- R(a);S_CUTQ(d)::QAB1(J)
- B(g);N_GUARD::R1(H)
- B(g);N_GUARD::R1(H),XB(g)
- Tries
- Try
- S(F);CHECK
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);CHECK,XP(e)
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);CHECK
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);CHECK
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);CHECK
- Refutation
- K(f);P-FLIGHT
- Try
- S(F);CHECK
- Refutation
- K(f);P-FLIGHT
- Try
- B(B);
- Threat
- DUALS(3)
- Vars
- Q(d);CHECK::B(K)+S(F)
- K(f);P_SPINB(g),S_FLIGHT,XR(H)::S(E)
- Q(d);N_GUARD,XB(B)::QAB1(J)
- Q(d);N_GUARD::QAB1(J)
- Refutation
- R(a);XB(B)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- Q(d);CHECK::B(K)+S(F)
- K(f);P_SPINB(g),S_FLIGHT,XR(H)::S(E)
- B(g);OGATE,XB(B)::R1(H),XB(g)
- Refutation
- Q(d);
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT,XR(H)::S(E)
- B(g);N_GUARD,XR(I)::R1(H)
- Q(d);N_GUARD::QAB1(J),XQ(d)
- Refutation
- R(a);
- Try
- R(I);CHECK
- Vars
- B(g);N_GUARD,P_SPINB(g)::R1(H)
- Refutation
- R(a);P_SPINR(a)
- Try
- Q(J);
- Threat
- S(E)
- Vars
- K(f);P_SPINB(g),S_FLIGHT,XR(H)::S(F)
- B(g);N_GUARD::R1(H)
- S(b);N_GUARD::QAB1(J),XS(b)
- Refutation
- B(g);
- Try
- Q(J);CHECK
- Vars
- K(f);P_SPINB(g),S_FLIGHT,XR(H)::S(F)
- Refutation
- S(b);XQ(J)
- Try
- Q(J);CHECK
- Refutation
- R(a);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(5)
- Vars
- Q(d);XB(B)::QAB(J)+R(H),DCHECK
- B(g);::QAB(J)+R(H),DCHECK,XB(g)
- Q(d);::QAB(J)+R(H),DCHECK
- B(g);::QAB(J)+R(H),DCHECK
- Refutation
- Q(d);P_PINR(H)
- Try
- Q(J);
- Threat
- DUALS(5)
- Vars
- B(g);::QAB(J)+R(H),DCHECK,XB(g)
- Q(d);::QAB(J)+R(H),DCHECK
- B(g);::QAB(J)+R(H),DCHECK
- Refutation
- Q(d);P_PINR(H)
- Try
- Actual
- Q(J);
- Threat
- S(E)
- Vars
- K(f);P_SPINB(g),S_FLIGHT,XR(H)::S(F)
- B(g);N_GUARD::R1(H),XB(g)
- B(g);N_GUARD::R1(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).