MESON Chess Problem Database
Problem Display
PID: 72023 (1rb5/1N1p1PP1/2pPkpR1/2P5/1n4P1/1KnP1N1r/Q3B3/4R3 w - - 0 1)
Feldmann, Tibor (aka Florian, Tibor)
HM., Die Schwalbe, 1935/II
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Kxf7
- 2.g8Q#
- 1...Sb1
- 2.Kxb4#
- 1...Sd1
- 2.Kxb4#
- 1...Sxe2
- 2.Kxb4#
- 1...Sa4
- 2.Kxb4#
- 1...Se4
- 2.Kxb4#
- 1...Sb5
- 2.Kxb4#
- 1...Scd5
- 2.Sd8#
- 1...Sc2
- 2.Kxc3#
- 1...Sxd3
- 2.Kxc3#
- 1...Sa6
- 2.Kxc3#
- 1...Kxf7
- Tries
- 1.Bd1+?
- 1...Kxf7
- 2.g8Q#
- 1...Se2
- 2.Kxb4#
- 1...Se4
- 2.Kxb4#
- 1...Kd5!
- 1...Kxf7
- 1.Bf1+?
- 1...Kxf7
- 2.g8Q#
- 1...Se2
- 2.Kxb4#
- 1...Se4
- 2.Kxb4#
- 1...Kd5!
- 1...Kxf7
- 1.f8S+?
- 1...Kd5
- 2.g8Q#
- 2.g8B#
- 1...Kf7!
- 1...Kd5
- 1.g8Q?
- threat
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Kd5
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rxb7
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Bxb7
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Scxa2
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sxe2
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sbxa2
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sxd3
- 2.Kxc3#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh1
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh2
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rg3
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh4
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh5
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh6
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Ra8
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sb1
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sd1
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sa4
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Se4
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sb5
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Scd5
- 2.Sd8#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sc2
- 2.Kxc3#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sbd5
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sa6
- 2.Kxc3#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rxf3!
- threat
- 1.g8B?
- threat
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Kd5
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rxb7
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Bxb7
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Scxa2
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sxe2
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sbxa2
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sxd3
- 2.Kxc3#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh1
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh2
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rg3
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh4
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh5
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rh6
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Ra8
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sb1
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sd1
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sa4
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Se4
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sb5
- 2.Kxb4#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Scd5
- 2.Sd8#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sc2
- 2.Kxc3#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sbd5
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Sa6
- 2.Kxc3#
- 2.f8Q#
- 2.f8S#
- 2.f8B#
- 2.f8R#
- 1...Rxf3!
- threat
- 1.Bd1+?
- Keys
- 1.d4!
- threat
- 2.Bc4#
- 1...Kd5
- 2.Bc4#
- 1...Kxf7
- 2.g8Q#
- 1...Sxe2
- 2.Kxb4#
- 1...Se4
- 2.Kxb4#
- 1...Scd5
- 2.Sd8#
- 1...Sd3
- 2.Kxc3#
- 1...Sbd5
- 2.Sg5#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- K(e);N_SPINP(f),S_FLIGHT,XP(L)::P=Q
- S(a);N_GUARD::QAB(B)+K(D),XS(c)
- S(a);N_GUARD,P_SPINS(a),XB(C)::QAB(B)+K(D),XS(c)
- S(a);SBLOCK::S(K)
- S(c);N_GUARD,P_PINS(K)::QAB(B)+K(D),XS(a)
- S(c);N_GUARD,P_PINS(K),XP(E)::QAB(B)+K(D),XS(a)
- Tries
- Try
- B(C);CHECK
- Vars
- K(e);N_SPINP(f),S_FLIGHT,XP(L)::P=Q
- S(a);P_SPINS(a)::QAB(B)+K(D),XS(c)
- Refutation
- K(e);N_SPINP(f),S_FLIGHT
- Try
- B(C);CHECK
- Vars
- K(e);N_SPINP(f),S_FLIGHT,XP(L)::P=Q
- S(a);P_SPINS(a)::QAB(B)+K(D),XS(c)
- Refutation
- K(e);N_SPINP(f),S_FLIGHT
- Try
- P(L);CHECK
- Vars
- K(e);N_SPINP(f),S_FLIGHT::P=Q
- Refutation
- K(e);N_SPINP(f),S_FLIGHT
- Try
- P(M);
- Threat
- DUALS(4)
- Refutation
- R(b);XS(F)
- Try
- P(M);
- Threat
- DUALS(4)
- Refutation
- R(b);XS(F)
- Try
- Actual
- P(E);
- Threat
- R(A)+B(C),DCHECK
- Vars
- K(e);N_SPINP(f),S_FLIGHT::B(C)
- K(e);N_SPINP(f),S_FLIGHT,XP(L)::P=Q
- S(a);N_GUARD,P_PINS(F),P_SPINS(a),XB(C)::QAB(B)+K(D),XS(c)
- S(a);N_GUARD,P_PINS(F)::QAB(B)+K(D),XS(c)
- S(a);P_PINS(F),SBLOCK::S(K)
- S(c);N_GUARD,P_PINS(K)::QAB(B)+K(D),XS(a)
- S(c);P_PINS(K),SBLOCK::S(F)
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).