MESON Chess Problem Database
Problem Display
PID: 72075 (8/7B/3Q1n2/1p1n4/1p2r3/1p1k4/1P1PR3/3RK1B1 w - - 0 1)
Rice, John Michael
1st Prize, Problem Observer, 2006
#2
8 + 7
| 136 | Problem Observer | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Kc2
- 2.d4#
- 1...Kc4
- 2.d3#
- 1...Kc2
- Tries
- 1.Bxe4+?
- 1...Kc4
- 2.Qc5#
- 2.Qc6#
- 2.d3#
- 1...Sxe4!
- 1...Kc4
- 1.Rc1?
- 1...Sg4
- 2.Bxe4#
- 2.Qxd5#
- 1...Sh5
- 2.Bxe4#
- 2.Qxd5#
- 1...Sd7
- 2.Bxe4#
- 2.Qxd5#
- 1...Se8
- 2.Bxe4#
- 2.Qxd5#
- 1...Sg8
- 2.Bxe4#
- 2.Qxd5#
- 1...Sxh7!
- 1...Sg4
- 1.Qg3+?
- 1...Kc2
- 2.d4#
- 1...Kc4
- 2.d3#
- 1...Se3!
- 1...Kc2
- 1.Qxb4?
- 1...Kc2
- 2.d4#
- 1...Sxh7
- 2.Qxe4#
- 1...Sg4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sc3
- 2.Qxc3#
- 2.dxc3#
- 1...Se3
- 2.Qc3#
- 2.dxe3#
- 1...Sf4
- 2.Qc3#
- 2.Qxb3#
- 1...Sb6
- 2.Qc3#
- 2.Qxb3#
- 1...Sc7
- 2.Qc3#
- 2.Qxb3#
- 1...Se7
- 2.Qc3#
- 2.Qxb3#
- 1...Sh5
- 2.Bxe4#
- 2.Qxe4#
- 1...Sd7
- 2.Bxe4#
- 2.Qxe4#
- 1...Se8
- 2.Bxe4#
- 2.Qxe4#
- 1...Sg8
- 2.Bxe4#
- 2.Qxe4#
- 1...Sxb4!
- 1...Kc2
- 1.Qc5?
- 1...Sc3
- 2.dxc3#
- 1...Sg4
- 2.Bxe4#
- 1...Se3
- 2.Rxe3#
- 2.dxe3#
- 1...Sf4
- 2.Re3#
- 1...Sb6
- 2.Re3#
- 1...Sc7
- 2.Re3#
- 1...Se7
- 2.Re3#
- 1...Sh5
- 2.Bxe4#
- 1...Sd7
- 2.Bxe4#
- 1...Se8
- 2.Bxe4#
- 1...Sg8
- 2.Bxe4#
- 1...Sxh7!
- 1...Sc3
- 1.Qxd5+?
- 1...Kc2
- 2.d4#
- 1...Sxd5!
- 1...Kc2
- 1.Bxe4+?
- Keys
- 1.Qe6!
- 1...Kc2
- 2.d4#
- 1...Kc4
- 2.d3#
- 1...Sxh7
- 2.Qxe4#
- 1...Sg4
- 2.Qxe4#
- 1...Sc3
- 2.dxc3#
- 1...Se3
- 2.dxe3#
- 1...Sf4
- 2.Qxb3#
- 1...Sb6
- 2.Qxb3#
- 1...Sc7
- 2.Qxb3#
- 1...Se7
- 2.Qxb3#
- 1...Sh5
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Se8
- 2.Qxe4#
- 1...Sg8
- 2.Qxe4#
- 1...Kc2
- 1.Qe6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- K(b);N_SPINS(f),OGATE,S_FLIGHT::R(F)+P(E)
- K(b);N_SPINR(d),N_SPINS(f),OGATE,S_FLIGHT::P(E)
- Tries
- Try
- B(H);CHECK,N_SPINR(F),XR(d)
- Refutation
- S(g);XB(H)
- Try
- R(A);
- Refutation
- S(g);N_SPINR(d),XB(H)
- Try
- Q(G);CHECK,N_PINS(f)
- Vars
- K(b);OGATE,S_FLIGHT::R(F)+P(E)
- K(b);N_SPINR(d),OGATE,S_FLIGHT::P(E)
- Refutation
- S(f);N_PINR(F),P_SPINS(f)
- Try
- Q(G);N_PINS(f),XP(c)
- Vars
- K(b);OGATE,S_FLIGHT::R(F)+P(E)
- S(g);N_GUARD,N_SPINR(d),XB(H)::QAB1(G),XR(d)
- Refutation
- S(f);XQ(G)
- Try
- Q(G);N_PINS(f)
- Vars
- S(f);OGATE::R(A)+P(E),XS(f)
- S(g);N_GUARD::B(H),XR(d)
- S(f);N_GUARD::R1(F)
- Refutation
- S(g);N_SPINR(d),XB(H)
- Try
- Q(G);CHECK,XS(f)
- Vars
- K(b);OGATE,S_FLIGHT::R(F)+P(E)
- Refutation
- S(g);XQ(G)
- Try
- Actual
- Q(G);N_PINS(f)
- Vars
- K(b);OGATE,S_FLIGHT::R(F)+P(E)
- K(b);N_SPINR(d),OGATE,P_SPINS(f),S_FLIGHT::P(E)
- S(g);N_GUARD,N_SPINR(d),XB(H)::QAB1(G),XR(d)
- S(g);N_GUARD::QAB1(G),XR(d)
- S(f);OGATE::R(A)+P(E),XS(f)
- S(f);N_PINR(F),OGATE::R(A)+P(E),XS(f)
- S(f);OGATE::QAR2(G),XP(a)
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).