MESON Chess Problem Database
Problem Display
PID: 101393 (8/2N5/8/p2R1p2/pbkp1P1p/p1r2B1K/PQRp2p1/1n1N2B1 w - - 0 1)
Rice, William Bayard
Comm., Good Companions, 1923
#2
10 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...axb2
- 2.Sxb2#
- 1...d3
- 2.Se3#
- 1...Kd3
- Tries
- 1.Kxg2?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...h3+!
- 1...Kd3
- 1.Kh2?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...h3!
- 1...Kd3
- 1.Kxh4?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...Be7+!
- 1...Kd3
- 1.Se3+?
- 1...dxe3
- 2.Be2#
- 1...Kd3!
- 1...dxe3
- 1.Sa6?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bd6
- 2.Rxd4#
- 2.Qb5#
- 1...Be7
- 2.Rxd4#
- 2.Qb5#
- 1...Bf8
- 2.Rxd4#
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...Bc5!
- 1...Kd3
- 1.Se6?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bd6
- 2.Rxd4#
- 2.Qb5#
- 1...Be7
- 2.Rxd4#
- 2.Qb5#
- 1...Bf8
- 2.Rxd4#
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...Bc5!
- 1...Kd3
- 1.Sa8?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Se3#
- 2.Sb6#
- 1...Bc5!
- 1...Kd3
- 1.Se8?
- 1...Kd3
- 2.Rxd4#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...Bc5!
- 1...Kd3
- 1.Rxc3+?
- 1...Bxc3
- 2.Qb5#
- 1...dxc3
- 2.Se3#
- 2.Be2#
- 1...Sxc3!
- 1...Bxc3
- 1.Rxa5?
- 1...Rxc2
- 2.Qxd4#
- 1...Bxa5
- 2.Qb5#
- 1...axb2
- 2.Sxb2#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Bd5#
- 1...Kd3!
- 1...Rxc2
- 1.Rxf5?
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Bd5#
- 1...Kd3!
- 1...Rxc2
- 1.Rd6?
- 1...Kd3
- 2.Rxd4#
- 1...Kc5
- 2.Rc6#
- 1...Rxc2
- 2.Qxd4#
- 1...Bxd6
- 2.Qb5#
- 1...Bc5
- 2.Qb5#
- 1...d3
- 2.Bd5#
- 1...axb2!
- 1...Kd3
- 1.Qxb1?
- 1...Kd3
- 2.Rxc3#
- 2.Rxd4#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Se3#
- 1...Rxc2!
- 1...Kd3
- 1.Qb3+?
- 1...Kd3
- 2.Rxd4#
- 1...axb3!
- 1...Kd3
- 1.Kxg2?
- Keys
- 1.Re5!
- 1...Kd3
- 2.Be2#
- 1...Rxc2
- 2.Qxd4#
- 1...axb2
- 2.Sxb2#
- 1...Bc5
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...d3
- 2.Bd5#
- 1...Kd3
- 1.Re5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(h);N_PINB(F),N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- B(g);OGATE::QAB1(D)
- P(d);XQ(D)::S(A),XP(d)
- P(i);N_GUARD,N_PINB(F)::S(A)
- Tries
- Try
- K(G);N_SPINB(F),S_FLIGHT,XP(c)
- Vars
- K(h);N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- P(i);N_GUARD::S(A)
- Refutation
- P(j);CHECK
- Try
- K(G);N_SPINB(F),P-FLIGHT
- Vars
- K(h);N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- B(g);OGATE,P_PINP(H)::QAB1(D)
- P(i);N_GUARD::S(A)
- Refutation
- P(j);
- Try
- K(G);N_SPINB(F),P-FLIGHT,XP(j)
- Vars
- K(h);N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- P(i);N_GUARD::S(A)
- Refutation
- B(g);CHECK
- Try
- S(A);CHECK,N_SPINB(F)
- Vars
- P(i);XS(A)::B(F)
- Refutation
- K(h);N_SPINR(e),P_SPINP(i),S_FLIGHT
- Try
- S(J);
- Vars
- K(h);N_PINB(F),N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- P(i);N_GUARD,N_PINB(F)::S(A)
- Refutation
- B(g);
- Try
- S(J);
- Vars
- K(h);N_PINB(F),N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- P(i);N_GUARD,N_PINB(F)::S(A)
- Refutation
- B(g);
- Try
- S(J);
- Vars
- K(h);N_PINB(F),N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- Refutation
- B(g);
- Try
- S(J);
- Vars
- K(h);N_PINB(F),N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- P(i);N_GUARD,N_PINB(F)::S(A)
- Refutation
- B(g);
- Try
- R(E);CHECK,N_SPINB(F),XR(e)
- Vars
- B(g);OGATE,XR(E)::QAB1(D)
- Refutation
- S(a);XR(E)
- Try
- R(I);XP(k)
- Vars
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- B(g);OGATE,XR(I)::QAB1(D)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- P(i);N_PINB(F),SBLOCK::B(F)
- Refutation
- K(h);N_PINB(F),N_SPINR(e),S_FLIGHT
- Try
- R(I);XP(l)
- Vars
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- P(i);N_PINB(F),SBLOCK::B(F)
- Refutation
- K(h);N_PINB(F),N_SPINR(e),S_FLIGHT
- Try
- R(I);
- Vars
- K(h);N_PINB(F),N_SPINR(e),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- K(h);P-FLIGHT,P_SPINP(i)::R1(I)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- B(g);OGATE,XR(I)::QAB1(D)
- B(g);OGATE::QAB1(D)
- P(i);N_PINB(F),SBLOCK::B(F)
- Refutation
- P(d);XQ(D)
- Try
- Q(D);XS(a)
- Vars
- B(g);OGATE::QAB1(D)
- P(i);N_GUARD,N_PINB(F)::S(A)
- Refutation
- R(e);N_PINB(F),N_SPINR(e),XR(E)
- Try
- Q(D);CHECK
- Vars
- K(h);N_PINB(F),P_SPINP(i),S_FLIGHT::R1(I),XP(i)
- Refutation
- P(f);XQ(D)
- Try
- Actual
- R(I);
- Vars
- K(h);N_PINB(F),N_SPINR(e),S_FLIGHT::B(F)
- R(e);N_PINB(F),N_SPINR(e),OGATE,XR(E)::QAR1(D),XP(i)
- P(d);XQ(D)::S(A),XP(d)
- B(g);OGATE::QAB1(D)
- P(i);N_PINB(F),SBLOCK::B(F)
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).