MESON Chess Problem Database
Problem Display
PID: 11455 (8/3N3p/4B2K/8/p3k1p1/Q2b2p1/3R1nN1/5R1n w - - 0 1)
Beers, William Alexander
1st Prize, American Chess Bulletin, 1939
#2
7 + 8
| 5088 | How to Solve Chess Problems | 1945 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
| 5063 | Spectacular Chess Problems | 1965 |
| 56 | The Problemist | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Kf3
- 2.Bd5#
- 1...Kd4
- 2.Qb4#
- 1...Bb1
- 2.Re1#
- 2.Qe3#
- 1...Bxf1
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Rf4#
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3
- Tries
- 1.Kh5?
- 1...Kf3
- 2.Bd5#
- 1...Kd4
- 2.Qb4#
- 1...Bxf1
- 2.Qe3#
- 1...Bb1
- 2.Re1#
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Rf4#
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...h6!
- 1...Kf3
- 1.Bd5+?
- 1...Kd4
- 2.Qc5#
- 1...Kf5
- 2.Qf8#
- 2.Qxd3#
- 1...Kxd5!
- 1...Kd4
- 1.Ra1?
- 1...Kd4
- 2.Qb4#
- 1...Bb1
- 2.Qe3#
- 1...Bf1
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Rb1?
- 1...Kd4
- 2.Rb4#
- 2.Qb4#
- 1...Bxb1
- 2.Qe3#
- 1...Bf1
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Rb4#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Rc1?
- 1...Kd4
- 2.Rc4#
- 2.Qb4#
- 2.Qxa4#
- 1...Bb1
- 2.Re1#
- 2.Rc4#
- 2.Qe3#
- 1...Bf1
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Rxc4#
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Rfd1?
- 1...Kd4
- 2.Qb4#
- 1...Sxd1
- 2.Qxd3#
- 1...Bb1
- 2.Re1#
- 2.Re2#
- 2.Rd4#
- 2.Qe3#
- 1...Bf1
- 2.Rd4#
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Re2#
- 2.Rd4#
- 2.Qe3#
- 1...Be2
- 2.Rxe2#
- 2.Rd4#
- 2.Qe3#
- 1...Bc4
- 2.Rd4#
- 2.Qe3#
- 1...Bb5
- 2.Rd4#
- 2.Qe3#
- 1...Ba6
- 2.Rd4#
- 2.Qe3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Re1+?
- 1...Kd4
- 2.Qb2#
- 2.Qb4#
- 2.Qc5#
- 2.Qa1#
- 1...Be2
- 2.Rexe2#
- 2.Qe3#
- 1...Kf3!
- 1...Kd4
- 1.Rg1?
- 1...Kd4
- 2.Qb4#
- 1...Bb1
- 2.Re1#
- 2.Qe3#
- 1...Bf1
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Rxh1?
- 1...Kd4
- 2.Qb4#
- 1...Sxh1
- 2.Qxd3#
- 1...Bb1
- 2.Re1#
- 2.Qe3#
- 1...Bf1
- 2.Qe3#
- 1...Bc2
- 2.Re1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sd1
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Rfxf2?
- threat
- 2.Rf4#
- 2.Qxd3#
- 1...Kd4
- 2.Rf4#
- 2.Qb4#
- 2.Qxd3#
- 1...gxf2
- 2.Qxd3#
- 1...Bb1
- 2.Bd5#
- 2.Bf5#
- 2.Rfe2#
- 2.Rf4#
- 2.Qb4#
- 2.Qe3#
- 2.Qxa4#
- 1...Bf1
- 2.Bd5#
- 2.Bf5#
- 2.Rf4#
- 2.Qe3#
- 1...Bc2
- 2.Bd5#
- 2.Bf5#
- 2.Rfe2#
- 2.Rf4#
- 2.Qb4#
- 2.Qe3#
- 1...Be2
- 2.Bd5#
- 2.Bf5#
- 2.Rfxe2#
- 2.Rf4#
- 2.Qe3#
- 1...Bc4
- 2.Bf5#
- 2.Rf4#
- 2.Qe3#
- 1...Bb5
- 2.Bd5#
- 2.Bf5#
- 2.Rf4#
- 2.Qe3#
- 1...Ba6
- 2.Bd5#
- 2.Bf5#
- 2.Rf4#
- 2.Qe3#
- 1...Sxf2!
- threat
- 1.Rdd1?
- 1...Kd4
- 2.Qb4#
- 1...Bxf1
- 2.Qe3#
- 1...Sxd1
- 2.Rf4#
- 1...Bb1
- 2.Rfe1#
- 2.Qe3#
- 1...Bc2
- 2.Rfe1#
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bc4
- 2.Qe3#
- 1...Bb5
- 2.Qe3#
- 1...Ba6
- 2.Qe3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3!
- 1...Kd4
- 1.Re2+?
- 1...Kd4
- 2.Qb2#
- 2.Qc5#
- 2.Qa1#
- 1...Bxe2
- 2.Qe3#
- 1...Kf3!
- 1...Kd4
- 1.Rxd3?
- threat
- 2.Re1#
- 1...Sd1
- 2.Bd5#
- 2.Bf5#
- 2.Rf4#
- 1...Sxd3!
- threat
- 1.Qc5?
- threat
- 2.Qe3#
- 2.Qd5#
- 1...Bc4
- 2.Qe3#
- 2.Qf5#
- 1...Sd1
- 2.Sf6#
- 2.Bd5#
- 2.Bf5#
- 2.Rf4#
- 2.Qd5#
- 2.Qe5#
- 1...Kf3!
- threat
- 1.Qd6?
- threat
- 2.Qf4#
- 2.Qd5#
- 1...Sh3
- 2.Sc5#
- 2.Sf6#
- 2.Bf5#
- 2.Qe5#
- 2.Qxd3#
- 2.Qd5#
- 1...Bc4
- 2.Qf4#
- 1...Kf3!
- threat
- 1.Qf8?
- threat
- 2.Qf4#
- 1...Kd4
- 2.Qb4#
- 1...Sh3!
- threat
- 1.Qb3?
- threat
- 2.Qd5#
- 1...Kf3
- 2.Bd5#
- 1...Kd4
- 2.Qc4#
- 2.Qb4#
- 1...Bc4
- 2.Qe3#
- 1...axb3!
- threat
- 1.Qc3?
- 1...Kf3
- 2.Bd5#
- 1...Bxf1
- 2.Sc5#
- 2.Sf6#
- 2.Rd4#
- 2.Qe3#
- 2.Qc6#
- 1...Sh3
- 2.Sc5#
- 2.Sf6#
- 2.Qe5#
- 2.Qxd3#
- 1...Bb1
- 2.Sc5#
- 2.Sf6#
- 2.Re1#
- 2.Re2#
- 2.Rd4#
- 2.Qe3#
- 2.Qc6#
- 1...Bc2
- 2.Sc5#
- 2.Sf6#
- 2.Re1#
- 2.Re2#
- 2.Rd4#
- 2.Qe3#
- 2.Qc6#
- 1...Be2
- 2.Sc5#
- 2.Sf6#
- 2.Rxe2#
- 2.Rd4#
- 2.Qe3#
- 2.Qc6#
- 1...Bc4
- 2.Sc5#
- 2.Sf6#
- 2.Rd4#
- 2.Qe3#
- 1...Bb5
- 2.Sc5#
- 2.Sf6#
- 2.Rd4#
- 2.Qe3#
- 1...Ba6
- 2.Sc5#
- 2.Sf6#
- 2.Rd4#
- 2.Qe3#
- 2.Qc6#
- 1...Sd1
- 2.Sc5#
- 2.Sf6#
- 2.Rf4#
- 2.Qe5#
- 2.Qxd3#
- 1...a3!
- 1...Kf3
- 1.Kh5?
- Keys
- 1.Bg8!
- 1...Kf3
- 2.Bd5#
- 1...Kd4
- 2.Qb4#
- 1...Kf5
- 2.Qxd3#
- 1...Bxf1
- 2.Bxh7#
- 1...Bb1
- 2.Bxh7#
- 1...Bc2
- 2.Bxh7#
- 1...Be2
- 2.Bxh7#
- 1...Bc4
- 2.Bxh7#
- 1...Bb5
- 2.Bxh7#
- 1...Ba6
- 2.Bxh7#
- 1...Sd1
- 2.Rf4#
- 2.Qxd3#
- 1...Sh3
- 2.Qxd3#
- 1...Kf3
- 1.Bg8!
There are these afters: 10232
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT::B(E)
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- B(c);OGATE,XR(A)::QAR1(D)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Tries
- Try
- K(F);P-FLIGHT
- Vars
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT::B(E)
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- B(c);OGATE,XR(A)::QAR1(D)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- P(h);
- Try
- B(E);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAB1(D)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT,XB(E)
- Try
- R(A);
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);
- Vars
- B(c);OGATE,XR(A)::QAR1(D)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);
- Vars
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- S(b);N_GUARD,XR(A)::QAB1(D),XB(c)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);CHECK
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);XS(a)
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- S(b);N_GUARD,XR(A)::QAB1(D),XB(c)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- R(A);XS(b)
- Threat
- DUALS(2)
- Vars
- P(d);XR(A)::QAB1(D),XB(c)
- Refutation
- S(a);XR(A)
- Try
- R(B);
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- B(c);OGATE,XR(A)::QAR1(D)
- S(b);OGATE,XR(B)::R1(A)
- B(c);OGATE::QAR1(D)
- S(b);N_GUARD::QAB1(D),XB(c)
- Refutation
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT
- Try
- R(B);CHECK
- Vars
- B(c);OGATE,XR(B)::QAR1(D)
- Refutation
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT
- Try
- R(B);XB(c)
- Threat
- R(A)
- Refutation
- S(b);XR(B)
- Try
- Q(D);
- Threat
- DUALS(2)
- Refutation
- K(f);P_SPINS(b),S_FLIGHT
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- B(c);::QAR1(D)
- Refutation
- K(f);P_SPINS(b),S_FLIGHT
- Try
- Q(D);
- Threat
- QAR1(D)
- Vars
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- Refutation
- S(b);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT::B(E)
- B(c);OGATE::QAR1(D)
- Refutation
- P(e);XQ(D)
- Try
- Q(D);
- Vars
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT::B(E)
- Refutation
- P(e);
- Try
- Actual
- B(E);
- Vars
- K(f);P_SPINB(c),P_SPINS(b),S_FLIGHT::B(E)
- K(f);P-FLIGHT,P_SPINB(c)::QAR2(D)
- K(f);P_SPINS(b),S_FLIGHT::QAB(D),XB(c)
- B(c);XR(A)::B(E),XP(h)
- B(c);::B(E),XP(h)
- S(b);N_GUARD::QAB1(D),XB(c)
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).