MESON Chess Problem Database
Problem Display
PID: 999 (4Q1nr/4b2p/1pN2p1p/1N1k1p1P/P2P1B2/6K1/2P5/4R3 w - - 0 1)
Lewis, Robert Tony
Lewis, Sally
The Problemist Supplement, 1996
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Kc4
- Tries
- 1.Kf2?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Kg2?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Kh2?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Kf3?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Kh3?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Kh4?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Sa3?
- threat
- 2.c4#
- 1...Bxa3
- 2.Qe6#
- 1...b5!
- threat
- 1.Sb4+?
- 1...Bxb4
- 2.Qe6#
- 1...Kc4!
- 1...Bxb4
- 1.Sa5?
- threat
- 2.Qc6#
- 2.Qf7#
- 2.Qa8#
- 2.c4#
- 1...Bd8
- 2.Qc6#
- 2.Qd7#
- 2.Qf7#
- 2.Qe6#
- 2.Qxd8#
- 2.c4#
- 1...bxa5!
- threat
- 1.Se5?
- threat
- 2.Qc6#
- 2.Qf7#
- 1...Ke6
- 2.Qd7#
- 2.Qf7#
- 1...Bd6
- 2.Qf7#
- 2.c4#
- 1...fxe5!
- threat
- 1.Sca7?
- threat
- 2.Qc6#
- 2.Qf7#
- 1...Bc5
- 2.Qf7#
- 2.Qe6#
- 1...Kc4!
- threat
- 1.Sb8?
- threat
- 2.Qc6#
- 2.Qf7#
- 1...Bc5
- 2.Qf7#
- 2.Qe6#
- 1...Kc4!
- threat
- 1.Sd8?
- threat
- 2.Qc6#
- 2.Qf7#
- 1...Bxd8
- 2.Qe6#
- 1...Bc5
- 2.Qf7#
- 2.Qe6#
- 1...Kc4!
- threat
- 1.Re2?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Re3?
- 1...Kc4
- 2.Qf7#
- 1...Ba3
- 2.Qe6#
- 1...Bb4
- 2.Qe6#
- 1...Bc5
- 2.Qe6#
- 1...Bd8
- 2.Qe6#
- 1...Bf8
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Re5+?
- 1...Kc4
- 2.Qf7#
- 1...fxe5!
- 1...Kc4
- 1.Rxe7?
- 1...Kc4
- 2.Qf7#
- 1...Sxe7!
- 1...Kc4
- 1.Qd7+?
- 1...Kc4
- 2.Qe6#
- 1...Bd6!
- 1...Kc4
- 1.Qc8?
- threat
- 2.Qe6#
- 1...Kc4
- 2.Qe6#
- 1...Bd6!
- threat
- 1.Kf2?
- Keys
- 1.Rc1!
- 1...Kc4
- 2.Qf7#
- 1...Ke4
- 2.Sc3#
- 1...Ke6
- 2.Sc7#
- 1...Bd6
- 2.c4#
- 1...Ba3
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Bc5
- 2.c4#
- 1...Bd8
- 2.c4#
- 1...Bf8
- 2.c4#
- 1...Kc4
- 1.Rc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- B(f);OGATE,P_PINP(E)::QAB1(J)
- Refutation
- B(f);
- Try
- K(C);P-FLIGHT
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);
- Try
- K(C);S_FLIGHT
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);P_PINB(F)
- Try
- K(C);P-FLIGHT
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);
- Try
- K(C);P-FLIGHT
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);
- Try
- K(C);S_FLIGHT
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);
- Try
- S(G);
- Threat
- P(B)
- Vars
- B(f);OGATE,XS(G)::QAB1(J)
- Refutation
- P(c);
- Try
- S(I);CHECK
- Vars
- B(f);OGATE,XS(I)::QAB1(J)
- Refutation
- K(a);S_FLIGHT
- Try
- S(I);
- Threat
- DUALS(4)
- Refutation
- P(c);XS(I)
- Try
- S(I);
- Threat
- DUALS(2)
- Refutation
- P(d);XS(I)
- Try
- S(I);
- Threat
- DUALS(2)
- Refutation
- K(a);S_FLIGHT
- Try
- S(I);
- Threat
- DUALS(2)
- Refutation
- K(a);S_FLIGHT
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(f);OGATE,XS(I)::QAB1(J)
- Refutation
- K(a);S_FLIGHT
- Try
- R(A);
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);P_PINB(F)
- Try
- R(A);
- Vars
- K(a);S_FLIGHT::QAB(J)
- B(f);OGATE::QAB1(J)
- Refutation
- B(f);P_PINB(F)
- Try
- R(A);CHECK
- Vars
- K(a);S_FLIGHT::QAB(J)
- Refutation
- P(d);XR(A)
- Try
- R(A);XB(f)
- Vars
- K(a);S_FLIGHT::QAB(J)
- Refutation
- S(h);XR(A)
- Try
- Q(J);CHECK
- Vars
- K(a);S_FLIGHT::QAB(J)
- Refutation
- B(f);P_PINB(F),P_SPINB(f)
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- K(a);S_FLIGHT::QAB(J)
- Refutation
- B(f);P_PINB(F)
- Try
- Actual
- R(A);
- Vars
- K(a);S_FLIGHT::QAB(J)
- K(a);P_SPINB(f),S_FLIGHT::S(G)
- B(f);P_PINB(F)::P(B)
- B(f);::P(B)
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).