MESON Chess Problem Database
Problem Display
PID: 196798 (nB6/1pr1PN1p/1pb1B1pK/4P3/4kpP1/1Np1b3/2n1R1PQ/3R4 w - - 0 1)
Bettmann, Henry Wald
Boston Evening Transcript, 1919
#2
12 + 12
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rd7
- 2.Sg5#
- 1...Rxe7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...f3+
- 2.Sg5#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...Rd7
- Tries
- 1.Kg5?
- threat
- 2.Qxf4#
- 1...f3+
- 2.Qf4#
- 1...h6+!
- threat
- 1.Kxh7?
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...f3
- 2.Sg5#
- 2.Sd6#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...Rxe7!
- 1...Rd7
- 1.Bc4?
- 1...f3+
- 2.Sg5#
- 1...Rxe7
- 2.Sg5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bd3#
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5!
- 1...f3+
- 1.Bxc7?
- threat
- 2.Sg5#
- 1...g5
- 2.Sxg5#
- 2.Bf5#
- 1...Sxc7!
- threat
- 1.Rdd2?
- 1...f3+
- 2.Sg5#
- 1...Rxe7
- 2.Sg5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...cxd2!
- 1...f3+
- 1.Rd5?
- threat
- 2.Sg5#
- 2.Sd6#
- 1...f3+
- 2.Sg5#
- 1...Sd4
- 2.Rxd4#
- 1...Rd7
- 2.Sg5#
- 1...g5
- 2.Sxg5#
- 2.Sd6#
- 1...Bxd5!
- threat
- 1.Ree1?
- 1...f3+
- 2.Sg5#
- 1...Rxe7
- 2.Sg5#
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...Sxe1!
- 1...f3+
- 1.Rxe3+?
- 1...Sxe3
- 2.Rd4#
- 1...fxe3
- 2.Sg5#
- 2.Sd6#
- 1...Kxe3!
- 1...Sxe3
- 1.Qg1?
- 1...Rxe7
- 2.Sg5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...f3+!
- 1...Rxe7
- 1.Qg3?
- threat
- 2.Qf3#
- 1...f3+
- 2.Sg5#
- 1...Se1
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...fxg3+!
- threat
- 1.Qh1?
- 1...Rxe7
- 2.Sg5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...f3+!
- 1...Rxe7
- 1.Qh3?
- threat
- 2.Qf3#
- 1...Se1
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...f3+!
- threat
- 1.Qh5?
- threat
- 2.Sd6#
- 1...gxh5
- 2.Bf5#
- 1...Rd7
- 2.Sg5#
- 1...g5
- 2.Bf5#
- 1...f3+!
- threat
- 1.e8Q?
- 1...f3+
- 2.Sg5#
- 1...Bxe8
- 2.Bd5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Re7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...Rxf7!
- 1...f3+
- 1.e8S?
- threat
- 2.Sed6#
- 2.Sf6#
- 1...f3+
- 2.Sg5#
- 1...Bxe8
- 2.Bd5#
- 1...Rd7
- 2.Sg5#
- 2.Sf6#
- 1...Rxf7!
- threat
- 1.e8B?
- 1...f3+
- 2.Sg5#
- 1...Bxe8
- 2.Bd5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Re7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...Rxf7!
- 1...f3+
- 1.e8R?
- 1...f3+
- 2.Sg5#
- 1...Bxe8
- 2.Bd5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Re7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...Rxf7!
- 1...f3+
- 1.Kg5?
- Keys
- 1.Qh4!
- 1...f3+
- 2.g5#
- 1...Rxe7
- 2.Sg5#
- 1...Se1
- 2.Rd4#
- 1...Rd7
- 2.Sg5#
- 1...Rc8
- 2.Sg5#
- 1...Ba4
- 2.Bd5#
- 1...Bb5
- 2.Bd5#
- 1...Bd5
- 2.Bxd5#
- 1...Bd7
- 2.Bd5#
- 1...Be8
- 2.Bd5#
- 1...Sa1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Sb4
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...b5
- 2.Sc5#
- 1...g5
- 2.Bf5#
- 1...f3+
- 1.Qh4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(j);::S(K)
- R(j);XP(J)::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- P(e);CHECK::S(K)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Tries
- Try
- K(I);S_FLIGHT
- Threat
- QAR1(D),XP(e)
- Vars
- P(e);CHECK::QAR1(D)
- Refutation
- P(k);CHECK
- Try
- K(I);P-FLIGHT,XP(k)
- Vars
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- R(j);P_PINS(K),XP(J)
- Try
- B(H);
- Vars
- P(e);CHECK::S(K)
- R(j);XP(J)::S(K)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- Refutation
- P(h);
- Try
- B(L);XR(j)
- Threat
- S(K)
- Refutation
- S(l);XB(L)
- Try
- R(A);
- Vars
- P(e);CHECK::S(K)
- R(j);XP(J)::S(K)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- P(b);XR(A)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- P(e);CHECK::S(K)
- S(a);N_GUARD::R1(A),XS(a)
- R(j);::S(K)
- Refutation
- B(g);XR(A)
- Try
- R(B);
- Vars
- P(e);CHECK::S(K)
- R(j);XP(J)::S(K)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- S(a);N_SPINB(c),XR(B)
- Try
- R(B);CHECK,XB(c)
- Vars
- S(a);SBLOCK,XR(B)::R1(A)
- Refutation
- K(d);P-FLIGHT,XR(B)
- Try
- Q(D);
- Vars
- R(j);XP(J)::S(K)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- P(e);CHECK
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- P(e);CHECK::S(K)
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- Refutation
- P(e);CHECK,XQ(D)
- Try
- Q(D);
- Vars
- R(j);XP(J)::S(K)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- P(e);CHECK
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- S(a);N_GUARD::R1(A)
- S(a);N_GUARD::R1(A),XS(a)
- Refutation
- P(e);CHECK
- Try
- Q(D);
- Threat
- S(K)
- Vars
- P(h);N_GUARD,XQ(D)::B(H)
- R(j);::S(K)
- P(h);N_GUARD::B(H)
- Refutation
- P(e);CHECK
- Try
- P(J);
- Vars
- P(e);CHECK::S(K)
- B(g);N_GUARD,XQ(J)::B(H)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- R(j);XS(K)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- P(e);CHECK::S(K)
- B(g);N_GUARD,XS(J)::B(H)
- Refutation
- R(j);XS(K)
- Try
- P(J);
- Vars
- P(e);CHECK::S(K)
- B(g);N_GUARD,XB(J)::B(H)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- R(j);XS(K)
- Try
- P(J);
- Vars
- P(e);CHECK::S(K)
- B(g);N_GUARD,XR(J)::B(H)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(H)
- Refutation
- R(j);XS(K)
- Try
- Actual
- Q(D);
- Vars
- P(e);CHECK::QAR(D)+P(F)
- R(j);XP(J)::S(K)
- S(a);N_GUARD::R1(A)
- R(j);::S(K)
- B(g);N_GUARD::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(a);N_GUARD::R1(A),XS(a)
- P(f);N_GUARD::S(E)
- P(h);N_GUARD::B(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).