MESON Chess Problem Database
Problem Display
PID: 198395 (8/3p2p1/3B2pb/6r1/4p3/4N1pp/2R1BP1k/2K2Q2 w - - 0 1)
Betts, Frederick Charles
Brisbane Courier, 1920
#2
7 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Bxg3#
- 1...Rb5
- 2.Bxg3#
- 1...Rc5
- 2.Bxg3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 1...Rh5
- 2.Bxg3#
- 1...Ra5
- Tries
- 1.Kb1?
- 1...Rg4
- 2.Sxg4#
- 1...Ra5
- 2.Sg4#
- 2.Bxg3#
- 1...Rc5
- 2.Sg4#
- 2.Bxg3#
- 1...Rd5
- 2.Sg4#
- 2.Bxg3#
- 1...Re5
- 2.Sg4#
- 1...Rf5
- 2.Sg4#
- 2.Bxg3#
- 1...Rh5
- 2.Sg4#
- 2.Bxg3#
- 1...Rb5+!
- 1...Rg4
- 1.Kd1?
- 1...Rg4
- 2.Sxg4#
- 1...Ra5
- 2.Sg4#
- 2.Bxg3#
- 1...Rb5
- 2.Sg4#
- 2.Bxg3#
- 1...Rc5
- 2.Sg4#
- 2.Bxg3#
- 1...Re5
- 2.Sg4#
- 1...Rf5
- 2.Sg4#
- 2.Bxg3#
- 1...Rh5
- 2.Sg4#
- 2.Bxg3#
- 1...Rd5+!
- 1...Rg4
- 1.Kb2?
- 1...Rg4
- 2.Sxg4#
- 1...Ra5
- 2.Sg4#
- 2.Bxg3#
- 1...Rc5
- 2.Sg4#
- 2.Bxg3#
- 1...Rd5
- 2.Sg4#
- 2.Bxg3#
- 1...Re5
- 2.Sg4#
- 1...Rf5
- 2.Sg4#
- 2.Bxg3#
- 1...Rh5
- 2.Sg4#
- 2.Bxg3#
- 1...Rb5+!
- 1...Rg4
- 1.Bd1?
- threat
- 2.fxg3#
- 2.f3#
- 1...Rc5
- 2.Bxg3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 2.f3#
- 1...Re5!
- threat
- 1.Bf3?
- threat
- 2.Qh1#
- 2.fxg3#
- 1...Re5
- 2.Qh1#
- 1...Rc5
- 2.Bxg3#
- 2.Qh1#
- 1...Rd5
- 2.Bxg3#
- 2.Qh1#
- 1...exf3!
- threat
- 1.Bc4?
- threat
- 2.fxg3#
- 2.f3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 2.f3#
- 1...Re5!
- threat
- 1.Bg4?
- threat
- 2.Bxg3#
- 2.fxg3#
- 2.f3#
- 1...Rxg4
- 2.fxg3#
- 2.f3#
- 1...Rc5
- 2.Bxg3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 2.f3#
- 1...Re5!
- threat
- 1.Bb5?
- threat
- 2.fxg3#
- 2.f3#
- 1...Rc5
- 2.Bxg3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 2.f3#
- 1...Re5!
- threat
- 1.Bh5?
- threat
- 2.fxg3#
- 2.f3#
- 1...Rc5
- 2.Bxg3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 2.f3#
- 1...Re5!
- threat
- 1.Ba6?
- threat
- 2.fxg3#
- 2.f3#
- 1...Rc5
- 2.Bxg3#
- 1...Rd5
- 2.Bxg3#
- 1...Rf5
- 2.Bxg3#
- 2.f3#
- 1...Re5!
- threat
- 1.Rd2?
- 1...Re5
- 2.Sg4#
- 1...Rg4
- 2.Sxg4#
- 1...Ra5
- 2.Sg4#
- 2.Bxg3#
- 1...Rb5
- 2.Sg4#
- 2.Bxg3#
- 1...Rd5
- 2.Sg4#
- 2.Bxg3#
- 1...Rf5
- 2.Sg4#
- 2.Bxg3#
- 1...Rh5
- 2.Sg4#
- 2.Bxg3#
- 1...Rc5+!
- 1...Re5
- 1.Qxh3+?
- 1...Kg1
- 2.Qg2#
- 1...Kxh3!
- 1...Kg1
- 1.fxg3?
- threat
- 2.Bd1#
- 2.Bd3#
- 2.Bf3#
- 2.Bc4#
- 2.Bg4#
- 2.Bb5#
- 2.Bh5#
- 2.Ba6#
- 1...Rg4
- 2.Bd1#
- 2.Bd3#
- 2.Bf3#
- 2.Bc4#
- 2.Bxg4#
- 2.Bb5#
- 2.Ba6#
- 1...Rb5
- 2.Bd1#
- 2.Bd3#
- 2.Bf3#
- 2.Bc4#
- 2.Bg4#
- 2.Bxb5#
- 2.Bh5#
- 1...Rc5
- 2.Bc4#
- 1...Rd5
- 2.Bd3#
- 1...Rf5
- 2.Bf3#
- 1...Rh5
- 2.Bd1#
- 2.Bd3#
- 2.Bf3#
- 2.Bc4#
- 2.Bg4#
- 2.Bb5#
- 2.Bxh5#
- 2.Ba6#
- 1...Re5!
- threat
- 1.f3?
- threat
- 2.Bd1#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Ba6#
- 1...exf3
- 2.Bxf3#
- 1...Rb5
- 2.Bd1#
- 2.Bd3#
- 2.Bc4#
- 2.Bxb5#
- 1...Rc5
- 2.Bc4#
- 1...Rd5
- 2.Bd3#
- 1...Re5!
- threat
- 1.Kb1?
- Keys
- 1.f4!
- 1...exf4 ep
- 2.Bxf3#
- 1...g2
- 2.fxg5#
- 1...Re5
- 2.Sg4#
- 1...Rg4
- 2.Sxg4#
- 1...Ra5
- 2.Sg4#
- 1...Rb5
- 2.Sg4#
- 1...Rc5
- 2.Sg4#
- 1...Rd5
- 2.Sg4#
- 1...Rf5
- 2.Sg4#
- 1...Rh5
- 2.Sg4#
- 1...exf4 ep
- 1.f4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 6
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,P_PINS(F)::B(G),XP(b)
- R(e);N_GUARD,P_PINR(C),P_PINS(F)::B(G),XP(b)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD,N_SPINP(b)::S(F)
- Refutation
- R(e);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD,N_SPINP(b)::S(F)
- Refutation
- R(e);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD,N_SPINP(b)::S(F)
- Refutation
- R(e);CHECK
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,P_PINR(C),P_PINS(F)::B(G),XP(b)
- R(e);N_GUARD,P_PINS(F)::B(G),XP(b)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_SPINP(b),P_PINS(F)::QAR1(B)
- Refutation
- P(d);XB(D)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,P_PINS(F)::B(G),XP(b)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- R(e);P_PINR(C),P_PINS(F)::B(G),XP(b)
- R(e);P_PINS(F)::B(G),XP(b)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,P_PINR(C),P_PINS(F)::B(G),XP(b)
- R(e);N_GUARD,P_PINS(F)::B(G),XP(b)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,P_PINR(C),P_PINS(F)::B(G),XP(b)
- R(e);N_GUARD,P_PINS(F)::B(G),XP(b)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,P_PINR(C),P_PINS(F)::B(G),XP(b)
- R(e);N_GUARD,P_PINS(F)::B(G),XP(b)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- R(C);
- Vars
- R(e);N_GUARD,N_SPINP(b)::S(F)
- R(e);N_GUARD::S(F),XR(e)
- Refutation
- R(e);CHECK
- Try
- Q(B);CHECK,XP(c)
- Vars
- K(a);N_SPINP(b),S_FLIGHT::QAR1(B)
- Refutation
- K(a);N_SPINP(b),P-FLIGHT,XQ(B)
- Try
- P(E);XP(b)
- Threat
- DUALS(8)
- Vars
- R(e);P_PINR(C),P_PINS(F)::R(C)+B(D)
- R(e);P_PINS(F)::R(C)+B(D)
- Refutation
- R(e);P_PINS(F)
- Try
- P(E);
- Threat
- DUALS(5)
- Vars
- P(d);OGATE,XP(E)::R(C)+B(D),XP(d)
- R(e);P_PINR(C),P_PINS(F)::R(C)+B(D)
- R(e);P_PINS(F)::R(C)+B(D)
- Refutation
- R(e);N_SPINP(b),P_PINS(F)
- Try
- Actual
- P(E);N_PINP(b)
- Vars
- P(d);EP,P_SPINP(b),XP(E)::R(C)+B(D),XP(d)
- P(b);::B(G)+P(E),XR(e)
- R(e);N_GUARD::S(F)
- R(e);N_GUARD::S(F),XR(e)
- R(e);N_GUARD,P_PINR(C)::S(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).