MESON Chess Problem Database
Problem Display
PID: 169063 (8/R7/8/8/1KB5/2N1p3/pp6/kq6 w - - 0 1)
Atayants, Grigory Sergeevich
SuperProblem 009. TT, 2012
#2
4 + 5
| 5454 | Near Snap | 2018 |
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qe4
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...Qc2
- Tries
- 1.Be2?
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...Qe4+!
- 1...Qc2
- 1.Bd3?
- 1...Qxd3
- 2.Rxa2#
- 1...Qc2
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...e2!
- 1...Qxd3
- 1.Ra3?
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qe4
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...e2!
- 1...Qc2
- 1.Ra4?
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qe4
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...e2!
- 1...Qc2
- 1.Ra5?
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qe4
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...e2!
- 1...Qc2
- 1.Ra6?
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qe4
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...e2!
- 1...Qc2
- 1.Ra8?
- 1...Qc2
- 2.Rxa2#
- 1...Qd3
- 2.Rxa2#
- 1...Qe4
- 2.Rxa2#
- 1...Qf5
- 2.Rxa2#
- 1...Qg6
- 2.Rxa2#
- 1...Qh7
- 2.Rxa2#
- 1...Qc1
- 2.Rxa2#
- 1...Qd1
- 2.Rxa2#
- 1...Qe1
- 2.Rxa2#
- 1...Qf1
- 2.Rxa2#
- 1...Qg1
- 2.Rxa2#
- 1...Qh1
- 2.Rxa2#
- 1...e2!
- 1...Qc2
- 1.Be2?
- Keys
- 1.Bxa2!
- threat
- 2.Bxb1#
- 1...Qe4+
- 2.Bc4#
- 1...Qxa2
- 2.Rxa2#
- 1...Qc2
- 2.Bb3#
- 1...Qd3
- 2.Bc4#
- 1...Qf5
- 2.Bd5#
- 1...Qg6
- 2.Be6#
- 1...Qh7
- 2.Bf7#
- 1...Qc1
- 2.Bb1#
- 2.Bb3#
- 2.Bc4#
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qd1
- 2.Bb3#
- 1...Qe1
- 2.Bb1#
- 2.Bb3#
- 2.Bc4#
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qf1
- 2.Bc4#
- 1...Qg1
- 2.Bb1#
- 2.Bb3#
- 2.Bc4#
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- 1...Qh1
- 2.Bb1#
- 2.Bb3#
- 2.Bc4#
- 2.Bd5#
- 2.Be6#
- 2.Bf7#
- 2.Bg8#
- threat
- 1.Bxa2!
Anticipated by 345(1927)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINB(C)::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Tries
- Try
- B(C);
- Vars
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- Q(b);CHECK
- Try
- B(C);
- Vars
- Q(b);N_GUARD,XB(C)::R1(D),XP(c)
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINB(C)::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINB(C)::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINB(C)::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINB(C)::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- Q(b);N_GUARD::R1(D),XP(c)
- Q(b);N_GUARD,P_PINB(C)::R1(D),XP(c)
- Q(b);N_GUARD,P_PINS(A)::R1(D),XP(c)
- Q(b);N_GUARD,SBLOCK::R1(D),XP(c)
- Refutation
- P(e);
- Try
- Actual
- B(C);XP(c)
- Threat
- R(D)+B(C),XQ(b)
- Vars
- Q(b);CHECK,N_GUARD::R(D)+B(C)
- Q(b);OGATE,P_SPINQ(b),XB(C)::R1(D),XQ(b)
- Q(b);N_GUARD::R(D)+B(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).