MESON Chess Problem Database
Problem Display
PID: 243161 (n5r1/pP2bp1b/kp1n3R/3Q4/2P5/N7/KPP1B3/R3B3 w - - 0 1)
Banny, Dimitry Nikolaevich
Shakhmaty v SSSR, 1985
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.b8S#
- 1...Rg2
- 2.b8S#
- 1...Rg3
- 2.b8S#
- 1...Rg4
- 2.b8S#
- 1...Rg5
- 2.b8S#
- 1...Rg6
- 2.b8S#
- 1...Rg7
- 2.b8S#
- 1...Bd8
- 2.b8S#
- 1...Bf8
- 2.b8S#
- 1...Sxc4
- 2.Bxc4#
- 1...Se4
- 2.c5#
- 1...Sb5
- 2.cxb5#
- 1...Sf5
- 2.c5#
- 1...Sxb7
- 2.Qb5#
- 1...Sc8
- 2.b8S#
- 1...Se8
- 2.b8S#
- 1...b5
- 2.Qxb5#
- 1...Rg1
- Tries
- 1.Kb3?
- threat
- 2.Sb1#
- 2.Sb5#
- 1...Bxc2+
- 2.Sxc2#
- 1...Sxc4
- 2.Bxc4#
- 1...Sxb7
- 2.Qb5#
- 1...b5
- 2.Qxb5#
- 1...Se4
- 2.c5#
- 1...Sb5
- 2.cxb5#
- 1...Sf5
- 2.c5#
- 1...Sc8
- 2.b8S#
- 1...Se8
- 2.b8S#
- 1...Rg3+!
- threat
- 1.Sb1?
- threat
- 2.Kb3#
- 1...Sxc4
- 2.Bxc4#
- 1...Sxb7
- 2.Qb5#
- 1...b5
- 2.Qxb5#
- 1...Rg3
- 2.b8S#
- 1...Se4
- 2.c5#
- 1...Sb5
- 2.cxb5#
- 1...Sf5
- 2.c5#
- 1...Sc8
- 2.b8S#
- 1...Se8
- 2.b8S#
- 1...Bxc2!
- threat
- 1.c5+?
- 1...Sc4
- 2.Bxc4#
- 1...Sb5
- 2.Bxb5#
- 1...b5
- 2.Bxb5#
- 1...Bd3!
- 1...Sc4
- 1.Kb3?
- Keys
- 1.Kb1!
- threat
- 2.Sb5#
- 1...Bxc2+
- 2.Sxc2#
- 1...Sxc4
- 2.Bxc4#
- 1...Sxb7
- 2.Qb5#
- 1...b5
- 2.Qxb5#
- 1...Rg3
- 2.b8S#
- 1...Se4
- 2.c5#
- 1...Sb5
- 2.cxb5#
- 1...Sf5
- 2.c5#
- 1...Sc8
- 2.b8S#
- 1...Se8
- 2.b8S#
- threat
- 1.Kb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(i);N_GUARD::P=S
- B(e);S_CUTR(i)::P=S
- S(c);OGATE,P_SPINP(b),P_SPINS(c),XP(H)::B(F),XS(c)
- S(c);N_GUARD,P_SPINP(b),S_CUTB(g)::B(F)+P(H)
- S(c);OGATE,P_SPINP(b)::P(H),XS(c)
- S(c);N_GUARD,P_SPINP(b),SBLOCK,XP(K)::QAB1(I)
- S(c);P_SPINP(b),S_CUTR(i)::P=S
- P(b);P_SPINS(c)::QAB1(I),XP(b)
- Tries
- Try
- K(C);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,XP(E)::R(A)+S(G),XB(g)
- S(c);OGATE,P_SPINP(b),P_SPINS(c),XP(H)::B(F),XS(c)
- S(c);N_GUARD,P_SPINP(b),SBLOCK,XP(K)::QAB1(I)
- P(b);P_SPINS(c)::QAB1(I),XP(b)
- S(c);N_GUARD,P_SPINP(b),S_CUTB(g)::B(F)+P(H)
- S(c);OGATE,P_SPINP(b)::P(H),XS(c)
- S(c);P_SPINP(b),S_CUTR(i)::P=S
- Refutation
- R(i);CHECK
- Try
- S(G);
- Threat
- R(A)+K(C)
- Vars
- S(c);OGATE,P_SPINP(b),P_SPINS(c),XP(H)::B(F),XS(c)
- S(c);N_GUARD,P_SPINP(b),SBLOCK,XP(K)::QAB1(I)
- P(b);P_SPINS(c)::QAB1(I),XP(b)
- R(i);N_GUARD::P=S
- S(c);N_GUARD,P_SPINP(b),S_CUTB(g)::B(F)+P(H)
- S(c);OGATE,P_SPINP(b)::P(H),XS(c)
- S(c);P_SPINP(b),S_CUTR(i)::P=S
- Refutation
- B(g);XP(E)
- Try
- P(H);CHECK
- Vars
- S(c);N_GUARD,P_SPINP(b),P_SPINS(c)::B(F),XS(c)
- P(b);P_SPINP(b),P_SPINS(c)::B(F),XP(b)
- Refutation
- B(g);P_SPINB(g)
- Try
- Actual
- K(C);P_SPINP(E),S_FLIGHT
- Threat
- R(A)+S(G)
- Vars
- B(g);CHECK,XP(E)::R(A)+S(G),XB(g)
- S(c);OGATE,P_SPINP(b),P_SPINS(c),XP(H)::B(F),XS(c)
- S(c);N_GUARD,P_SPINP(b),SBLOCK,XP(K)::QAB1(I)
- P(b);P_SPINS(c)::QAB1(I),XP(b)
- R(i);N_GUARD::P=S
- S(c);N_GUARD,N_PINP(E),P_SPINP(b),S_CUTB(g)::B(F)+P(H)
- S(c);OGATE,P_SPINP(b)::P(H),XS(c)
- S(c);P_SPINP(b),S_CUTR(i)::P=S
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).