MESON Chess Problem Database
Problem Display
PID: 120850 (8/5p1p/2K1pP1N/4PPp1/3k2NR/2prpQ2/2B2P2/8 w - - 0 1)
Siklosi, Pal
Fonyodi Jarasi TST, 1963
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Sxe3#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...exf2
- 2.Qxd3#
- 1...e2
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...exf5
- 2.Qd5#
- 1...Kc4
- Tries
- 1.Kb5?
- 1...exf2
- 2.Qxd3#
- 1...exf5
- 2.Sxf5#
- 1...Rd1
- 2.Qxd1#
- 2.Qe4#
- 2.fxe3#
- 1...Rd2
- 2.Qe4#
- 2.fxe3#
- 1...e2
- 2.Qxd3#
- 1...gxh4!
- 1...exf2
- 1.Kd6?
- 1...exf2
- 2.Qxd3#
- 1...gxh4
- 2.Qf4#
- 1...exf5
- 2.Qd5#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...e2
- 2.Qxd3#
- 1...Kc4+!
- 1...exf2
- 1.Sh2+?
- 1...gxh4
- 2.Qf4#
- 1...g4
- 2.Qf4#
- 1...Kxe5!
- 1...gxh4
- 1.Sxe3+?
- 1...gxh4
- 2.Qf4#
- 1...g4
- 2.Qf4#
- 1...Kxe5!
- 1...gxh4
- 1.Rh1?
- 1...exf2
- 2.Qxd3#
- 1...exf5
- 2.Qd5#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...e2
- 2.Qxd3#
- 1...Kc4!
- 1...exf2
- 1.Rh2?
- 1...exf2
- 2.Qxd3#
- 1...exf5
- 2.Qd5#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...e2
- 2.Qxd3#
- 1...Kc4!
- 1...exf2
- 1.Rh3?
- 1...exf2
- 2.Qxd3#
- 1...exf5
- 2.Qd5#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...e2
- 2.Qxd3#
- 1...Kc4!
- 1...exf2
- 1.Rh5?
- 1...exf2
- 2.Qxd3#
- 1...exf5
- 2.Qd5#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...e2
- 2.Qxd3#
- 1...Kc4!
- 1...exf2
- 1.Qxe3+?
- 1...Kc4
- 2.Qc5#
- 1...Rxe3!
- 1...Kc4
- 1.fxe6?
- threat
- 2.Qd5#
- 1...Kc4
- 2.Sxe3#
- 1...fxe6!
- threat
- 1.Kb5?
- Keys
- 1.Qe2!
- threat
- 2.Qxd3#
- 1...Kc4
- 2.Sxe3#
- 1...Ke4
- 2.Qxe3#
- 1...Rd1
- 2.fxe3#
- 1...Rd2
- 2.fxe3#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- K(d);P-FLIGHT::R(E)+S(D),DCHECK,XP(c)
- R(b);::QAR1(C)
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(c);OGATE::QAR1(C),XR(b)
- P(e);N_GUARD,XR(E)::QAR2(C)
- P(f);N_GUARD,XP(G)::QAR1(C)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(f);XP(G)::S(J),XP(f)
- P(c);OGATE::QAR1(C),XR(b)
- Refutation
- P(e);XR(E)
- Try
- K(H);P-FLIGHT
- Vars
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(e);N_GUARD,XR(E)::QAR2(C)
- P(f);N_GUARD,XP(G)::QAR1(C)
- R(b);::QAR1(C)
- P(c);OGATE::QAR1(C),XR(b)
- Refutation
- K(d);CHECK,P-FLIGHT
- Try
- S(D);CHECK
- Vars
- P(e);N_GUARD,XR(E)::QAR2(C)
- P(e);N_GUARD,P_SPINP(e)::QAR2(C)
- Refutation
- K(d);S_FLIGHT,XP(F)
- Try
- S(D);CHECK,XP(c)
- Vars
- P(e);N_GUARD,XR(E)::QAR2(C)
- P(e);N_GUARD,P_SPINP(e)::QAR2(C)
- Refutation
- K(d);S_FLIGHT,XP(F)
- Try
- R(E);
- Vars
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(f);N_GUARD,XP(G)::QAR1(C)
- R(b);::QAR1(C)
- P(c);OGATE::QAR1(C),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- R(E);
- Vars
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(f);N_GUARD,XP(G)::QAR1(C)
- R(b);::QAR1(C)
- P(c);OGATE::QAR1(C),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- R(E);
- Vars
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(f);N_GUARD,XP(G)::QAR1(C)
- R(b);::QAR1(C)
- P(c);OGATE::QAR1(C),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- R(E);
- Vars
- P(c);OGATE,XP(B)::QAR1(C),XR(b)
- P(f);N_GUARD,XP(G)::QAR1(C)
- R(b);::QAR1(C)
- P(c);OGATE::QAR1(C),XR(b)
- Refutation
- K(d);P-FLIGHT
- Try
- Q(C);CHECK,XP(c)
- Vars
- K(d);OGATE,P-FLIGHT::QAR1(C)
- Refutation
- R(b);XQ(C)
- Try
- P(G);XP(f)
- Threat
- QAR1(C)
- Vars
- K(d);P-FLIGHT::R(E)+S(D),DCHECK,XP(c)
- Refutation
- P(g);XP(G)
- Try
- Actual
- Q(C);
- Threat
- QAR1(C),XR(b)
- Vars
- K(d);P-FLIGHT,P_SPINR(b)::R(E)+S(D),DCHECK,XP(c)
- K(d);P-FLIGHT,P_SPINP(c),P_SPINR(b)::QAR1(C),XP(c)
- R(b);N_GUARD::P(B),XP(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).