MESON Chess Problem Database
Problem Display
PID: 49686 (k7/P7/8/N7/6p1/4Bpp1/R6b/3K3Q w - - 0 1)
Robertson, HA
The Puzzler, 1933
#2
6 + 5
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Qh8#
- 1...Bg1
- Tries
- 1.Kc1?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Ke1?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Kc2?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Kd2?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Bd4?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Bc5?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Bb6?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Ra1?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Re2?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Ra3?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Ra4?
- 1...Bg1
- 2.Qh8#
- 1...g2!
- 1...Bg1
- 1.Kc1?
- Keys
- 1.Rg2!
- 1...fxg2
- 2.Qxg2#
- 1...Bg1
- 2.Qh8#
- 1...f2
- 2.Rxg3#
- 1...fxg2
- 1.Rg2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);OGATE::QAB1(B)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- K(A);P-FLIGHT
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- K(A);S_FLIGHT
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- K(A);P-FLIGHT
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- B(D);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- B(D);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- B(D);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- R(C);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- R(C);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- R(C);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- R(C);
- Vars
- B(a);OGATE::QAB1(B)
- Refutation
- P(c);N_SPINP(b)
- Try
- Actual
- R(C);N_PINP(b)
- Vars
- P(b);OGATE,P_SPINP(b),XR(C)::QAB(B),XP(b)
- B(a);OGATE::QAB1(B)
- P(b);OGATEB::QAB(B)+R(C),XP(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).