MESON Chess Problem Database
Problem Display
PID: 204360 (K7/1N1p3B/3N2R1/4P3/2Pr4/1P1k1q1Q/2pPpr2/4B2b w - - 0 1)
Kovacs, Norbert
Comm., Centurini/Guidelli MT, 1925
#2
11 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qe3
- 2.Qxe3#
- 1...Qg3
- 2.Rxg3#
- 1...Qxh3
- 2.Rg3#
- 1...Rg2
- 2.Qxf3#
- 1...Rg4
- 2.Rxg4#
- 1...Rd5
- 2.Rg4#
- 1...Rxd6
- 2.Rxd6#
- 1...Qe3
- Tries
- 1.Sb5?
- threat
- 2.Rd6#
- 1...Qxh3
- 2.Rg3#
- 1...Qe3
- 2.Qxe3#
- 1...Qg3
- 2.Rxg3#
- 1...Rg2
- 2.Qxf3#
- 1...Rd6
- 2.Rxd6#
- 2.Re6#
- 2.Rf6#
- 1...d5
- 2.Sc5#
- 1...d6
- 2.Rxd6#
- 1...Ke4!
- threat
- 1.Sc8?
- threat
- 2.Rd6#
- 1...Qxh3
- 2.Rg3#
- 1...Rd5
- 2.Rg4#
- 1...Rd6
- 2.Rxd6#
- 1...Qe3
- 2.Qxe3#
- 1...Qg3
- 2.Rxg3#
- 1...Rg2
- 2.Qxf3#
- 1...d5
- 2.Sc5#
- 1...d6
- 2.Rxd6#
- 1...Ke4!
- threat
- 1.Se8?
- threat
- 2.Rd6#
- 1...Qxh3
- 2.Rg3#
- 1...Rd5
- 2.Rg4#
- 1...Rd6
- 2.Rxd6#
- 1...Qe3
- 2.Qxe3#
- 1...Qg3
- 2.Rxg3#
- 1...Rg2
- 2.Qxf3#
- 1...d5
- 2.Sc5#
- 1...d6
- 2.Rxd6#
- 1...Ke4!
- threat
- 1.Qxf3+?
- 1...Rxf3
- 2.Sc5#
- 1...Bxf3!
- 1...Rxf3
- 1.Sb5?
- Keys
- 1.Sf7!
- threat
- 2.Rd6#
- 1...Ke4
- 2.Rg4#
- 1...Qxh3
- 2.Rg3#
- 1...Rd5
- 2.Rg4#
- 1...Rd6
- 2.Rxd6#
- 1...Qe3
- 2.Qxe3#
- 1...Qg3
- 2.Rxg3#
- 1...Rg2
- 2.Qxf3#
- 1...d5
- 2.Sc5#
- 1...d6
- 2.Rxd6#
- threat
- 1.Sf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(f);OGATE::QAR1(D),XQ(f)
- Q(f);::B(J)+R(H),DCHECK,XQ(f)
- Q(f);N_SPINQ(f),XQ(D)::B(J)+R(H),DCHECK
- R(d);N_GUARD,S_CUTB(a)::QAR2(D),XQ(f)
- R(g);N_GUARD::B(J)+R(H),XR(g)
- R(g);N_GUARD,N_PINS(I)::B(J)+R(H)
- R(g);OGATE,XS(G)::B(J)+R(H),DCHECK,XR(g)
- Tries
- Try
- S(G);
- Threat
- B(J)+R(H)
- Vars
- Q(f);N_SPINQ(f),XQ(D)::B(J)+R(H),DCHECK
- Q(f);OGATE::QAR1(D),XQ(f)
- Q(f);::B(J)+R(H),DCHECK,XQ(f)
- R(d);N_GUARD,S_CUTB(a)::QAR2(D),XQ(f)
- P(h);N_PINS(I)::S(I)
- P(h);::B(J)+R(H),XP(h)
- Refutation
- K(e);N_PINS(I),N_SPINQ(f),S_FLIGHT
- Try
- S(G);
- Threat
- B(J)+R(H)
- Vars
- Q(f);N_SPINQ(f),XQ(D)::B(J)+R(H),DCHECK
- R(g);N_GUARD,N_PINS(I)::B(J)+R(H)
- R(g);::B(J)+R(H),DCHECK,XR(g)
- Q(f);OGATE::QAR1(D),XQ(f)
- Q(f);::B(J)+R(H),DCHECK,XQ(f)
- R(d);N_GUARD,S_CUTB(a)::QAR2(D),XQ(f)
- P(h);N_PINS(I)::S(I)
- P(h);::B(J)+R(H),XP(h)
- Refutation
- K(e);N_PINS(I),N_SPINQ(f),S_FLIGHT
- Try
- S(G);
- Threat
- B(J)+R(H)
- Vars
- Q(f);N_SPINQ(f),XQ(D)::B(J)+R(H),DCHECK
- R(g);N_GUARD,N_PINS(I)::B(J)+R(H)
- R(g);::B(J)+R(H),DCHECK,XR(g)
- Q(f);OGATE::QAR1(D),XQ(f)
- Q(f);::B(J)+R(H),DCHECK,XQ(f)
- R(d);N_GUARD,S_CUTB(a)::QAR2(D),XQ(f)
- P(h);N_PINS(I)::S(I)
- P(h);::B(J)+R(H),XP(h)
- Refutation
- K(e);N_PINS(I),N_SPINQ(f),S_FLIGHT
- Try
- Q(D);CHECK,N_SPINS(I),XQ(f)
- Vars
- R(d);XQ(D)::S(I)
- Refutation
- B(a);P_PINS(I),XQ(D)
- Try
- Actual
- S(G);
- Threat
- B(J)+R(H)
- Vars
- K(e);N_PINS(I),N_SPINQ(f),S_FLIGHT::B(J)+R(H),DCHECK
- Q(f);N_SPINQ(f),XQ(D)::B(J)+R(H),DCHECK
- R(g);N_GUARD,N_PINS(I)::B(J)+R(H)
- R(g);::B(J)+R(H),DCHECK,XR(g)
- Q(f);OGATE::QAR1(D),XQ(f)
- Q(f);::B(J)+R(H),DCHECK,XQ(f)
- R(d);N_GUARD,S_CUTB(a)::QAR2(D),XQ(f)
- P(h);N_PINS(I)::S(I)
- P(h);::B(J)+R(H),XP(h)
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).