MESON Chess Problem Database
Problem Display
PID: 133379 (Q6b/2p1N3/2Kpp1p1/1p2k1Pr/3R2Pn/4Bpq1/p2P1N2/1b6 w - - 0 1)
Ducker, Rev VT
The Field, 1961
(First published on Thu Feb 2 1961)
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...Bd3
- 2.Sxd3#
- 1...Be4+
- 2.Rxe4#
- 1...Sf5
- 2.Sxg6#
- 1...Qxg4
- Tries
- 1.Kxb5?
- threat
- 2.Sc6#
- 1...Bd3+
- 2.Sxd3#
- 1...c6+
- 2.Sxc6#
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...Be4
- 2.Rxe4#
- 2.Qxe4#
- 1...d5!
- threat
- 1.Kb7?
- threat
- 2.Sc6#
- 1...Be4+
- 2.Rxe4#
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...c6
- 2.Sxc6#
- 1...d5!
- threat
- 1.Kxc7?
- threat
- 2.Sc6#
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...Be4
- 2.Rxe4#
- 2.Qxe4#
- 1...Rh7!
- threat
- 1.Kd7?
- threat
- 2.Sc6#
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...Be4
- 2.Rxe4#
- 2.Qxe4#
- 1...c6
- 2.Sxc6#
- 1...Rh7!
- threat
- 1.Rc4?
- threat
- 2.d4#
- 1...Be4+
- 2.Rxe4#
- 1...Qxf2
- 2.Bf4#
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...a1Q
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...Qf4
- 2.Bxf4#
- 1...Bd3
- 2.Sxd3#
- 1...Sf5
- 2.Sxg6#
- 1...bxc4!
- threat
- 1.Rf4?
- threat
- 2.d4#
- 1...Be4+
- 2.Rxe4#
- 1...a1Q
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...Bd3
- 2.Sxd3#
- 1...Sf5
- 2.Sxg6#
- 1...Qxf4!
- threat
- 1.Kxb5?
- Keys
- 1.Rb4!
- threat
- 2.d4#
- 1...Be4+
- 2.Rxe4#
- 1...Qxf2
- 2.Bf4#
- 1...Qxg4
- 2.Sxg4#
- 1...Rxg5
- 2.Qxh8#
- 1...a1Q
- 2.Qxa1#
- 1...a1B
- 2.Qxa1#
- 1...Qf4
- 2.Bxf4#
- 1...Bd3
- 2.Sxd3#
- 1...Sf5
- 2.Sxg6#
- threat
- 1.Rb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- B(a);N_GUARD::S(B),XB(a)
- B(a);CHECK,N_GUARD::R1(D),XB(a)
- S(e);N_GUARD,S_CUTB(a)::S(H),XP(k)
- Tries
- Try
- K(G);S_FLIGHT,XP(f)
- Threat
- S(H)
- Vars
- B(a);CHECK,N_GUARD::S(B),XB(a)
- P(l);CHECK::S(H),XP(l)
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- Refutation
- P(i);
- Try
- K(G);S_FLIGHT
- Threat
- S(H)
- Vars
- B(a);CHECK,N_GUARD::R1(D),XB(a)
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- P(l);::S(H),XP(l)
- Refutation
- P(i);
- Try
- K(G);P-FLIGHT,XP(l)
- Threat
- S(H)
- Vars
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- Refutation
- R(h);P_PINS(H)
- Try
- K(G);S_FLIGHT
- Threat
- S(H)
- Vars
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- P(l);::S(H),XP(l)
- Refutation
- R(h);P_PINS(H)
- Try
- R(D);
- Threat
- P(A)
- Vars
- B(a);CHECK,N_GUARD::R1(D),XB(a)
- Q(d);N_GUARD,XS(B)::B(C)
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- P(b);OGATE::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XB(b)
- Q(d);N_GUARD::B(C),XQ(d)
- B(a);N_GUARD::S(B),XB(a)
- S(e);N_GUARD,S_CUTB(a)::S(H),XP(k)
- Refutation
- P(f);XR(D)
- Try
- R(D);
- Threat
- P(A)
- Vars
- B(a);CHECK,N_GUARD::R1(D),XB(a)
- P(b);OGATE::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XB(b)
- B(a);N_GUARD::S(B),XB(a)
- S(e);N_GUARD,S_CUTB(a)::S(H),XP(k)
- Refutation
- Q(d);XR(D)
- Try
- Actual
- R(D);
- Threat
- P(A)
- Vars
- B(a);CHECK,N_GUARD::R1(D),XB(a)
- Q(d);N_GUARD,XS(B)::B(C)
- Q(d);XP(E)::S(B),XQ(d)
- R(h);N_GUARD,XP(F)::QAB(I),XB(m)
- P(b);OGATE::QAB(I),XQ(b)
- P(b);OGATE::QAB(I),XB(b)
- Q(d);N_GUARD::B(C),XQ(d)
- B(a);N_GUARD::S(B),XB(a)
- S(e);N_GUARD,S_CUTB(a)::S(H),XP(k)
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).