MESON Chess Problem Database
Problem Display
PID: 65708 (2kq4/BnbnpPP1/1QR1B1K1/6P1/8/8/8/8 w - - 0 1)
Bedoni, Romeo
Phenix, 1999
#2
8 + 6
| 5454 | Near Snap | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qe8
- Tries
- 1.Kf5?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Sd6+!
- 1...Qe8
- 1.Kh5?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qh8+!
- 1...Qe8
- 1.Kh6?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qh8+!
- 1...Qe8
- 1.Rc1?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Sc5!
- 1...Qe8
- 1.Rc2?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Sc5!
- 1...Qe8
- 1.Rc3?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Sc5!
- 1...Qe8
- 1.Rc4?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Sc5!
- 1...Qe8
- 1.Rc5?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Sxc5!
- 1...Qe8
- 1.f8Q?
- threat
- 2.Rxc7#
- 2.Qxc7#
- 1...Qxf8
- 2.Qxc7#
- 1...Qe8+!
- threat
- 1.f8S?
- 1...Qxf8
- 2.Qxc7#
- 1...Sc5
- 2.Qb8#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qe8+!
- 1...Qxf8
- 1.f8B?
- 1...Qxf8
- 2.Qxc7#
- 1...Sc5
- 2.Qb8#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qe8+!
- 1...Qxf8
- 1.f8R?
- threat
- 2.Rxc7#
- 2.Qxc7#
- 1...Qxf8
- 2.Qxc7#
- 1...Qe8+!
- threat
- 1.g8Q?
- threat
- 2.Rxc7#
- 2.Qxc7#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qxg8+!
- threat
- 1.g8S?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Sc5
- 2.Qb8#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qxg8+!
- 1...Qe8
- 1.g8B?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Sc5
- 2.Qb8#
- 1...Sa5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qxg8+!
- 1...Qe8
- 1.g8R?
- threat
- 2.Rxc7#
- 2.Qxc7#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qxg8+!
- threat
- 1.Kf5?
- Keys
- 1.Qa6!
- 1...Qe8
- 2.fxe8Q#
- 2.fxe8R#
- 1...Qf8
- 2.gxf8Q#
- 2.gxf8R#
- 1...Qg8
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qh8
- 2.gxh8Q#
- 2.gxh8R#
- 1...Qe8
- 1.Qa6!
Anticipated by 100018(1939)
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- S(a);CHECK
- Try
- K(E);S_FLIGHT
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- K(E);P-FLIGHT
- Vars
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- R(C);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- S(a);N_SPINB(b)
- Try
- R(C);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- S(a);N_SPINB(b)
- Try
- R(C);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- S(a);N_SPINB(b)
- Try
- R(C);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- S(a);N_SPINB(b)
- Try
- R(C);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- Q(f);N_GUARD,P_PINP(H)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- S(a);N_SPINB(b),XR(C)
- Try
- P(G);P_PINQ(f)
- Threat
- DUALS(2)
- Vars
- Q(f);N_SPINQ(f),XQ(G)::QAR1(B),XB(b)
- Refutation
- Q(f);CHECK
- Try
- P(G);
- Vars
- Q(f);N_GUARD,XS(G)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- P(G);
- Vars
- Q(f);N_GUARD,XB(G)::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- P(G);P_PINQ(f)
- Threat
- DUALS(2)
- Vars
- Q(f);N_SPINQ(f),XR(G)::QAR1(B),XB(b)
- Refutation
- Q(f);CHECK
- Try
- P(H);P_PINQ(f)
- Threat
- DUALS(2)
- Vars
- Q(f);P_PINP(G)::QAR1(B),XB(b)
- Q(f);::QAR1(B),XB(b)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XQ(H)
- Try
- P(H);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK,XS(H)
- Try
- P(H);
- Vars
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XB(b)
- Q(f);N_GUARD::QAR1(B),XB(b)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK,XB(H)
- Try
- P(H);P_PINQ(f)
- Threat
- DUALS(2)
- Vars
- Q(f);P_PINP(G)::QAR1(B),XB(b)
- Q(f);::QAR1(B),XB(b)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XR(H)
- Try
- Actual
- Q(B);N_PINS(c),P_PINS(a)
- Vars
- Q(f);OGATE,P_PINP(G)::PXQ(f)=Q
- Q(f);OGATE::PXQ(f)=Q
- Q(f);OGATE,P_PINP(H)::PXQ(f)=Q
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).