MESON Chess Problem Database
Problem Display
PID: 100018 (N1kq4/PnrnpPP1/1Q2B1K1/N7/8/8/8/8 w - - 0 1)
Paros, Gyorgy
3rd Prize, Magyar Sakkvilag, 1939
#2
8 + 6
| 6490 | yacpdb | 2009 |
| 5454 | Near Snap | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sxa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qe8
- Tries
- 1.Kg5?
- 1...Sxa5
- 2.Qb8#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Rc5+!
- 1...Sxa5
- 1.Kh6?
- 1...Sxa5
- 2.Qb8#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qh8+!
- 1...Sxa5
- 1.Sc6?
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Sa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Rxc6!
- 1...Qe8
- 1.Sxc7?
- threat
- 2.Qxb7#
- 2.a8Q#
- 2.a8R#
- 1...Sxa5
- 2.Qb8#
- 2.a8Q#
- 2.a8R#
- 1...Qe8
- 2.a8Q#
- 2.a8R#
- 1...Qf8
- 2.a8Q#
- 2.a8R#
- 1...Qg8
- 2.a8Q#
- 2.a8R#
- 1...Qh8
- 2.a8Q#
- 2.a8R#
- 1...Sc5
- 2.Qb8#
- 2.a8Q#
- 2.a8R#
- 1...Sd6
- 2.Qb8#
- 2.a8Q#
- 2.a8R#
- 1...Qxc7!
- threat
- 1.Qc6?
- threat
- 2.Sb6#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Rxc6!
- threat
- 1.Qd6?
- threat
- 2.Sb6#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Qh8
- 2.Qxc7#
- 1...Rc1
- 2.Qb8#
- 1...Rc2
- 2.Qb8#
- 1...Rc3
- 2.Qb8#
- 1...Rc4
- 2.Qb8#
- 1...Rc5
- 2.Qb8#
- 1...Rc6
- 2.Qb8#
- 1...Sxa5!
- threat
- 1.f8Q?
- threat
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxc6#
- 2.Qxb7#
- 1...Qe8+!
- threat
- 1.f8S?
- 1...Qxf8
- 2.Qxc7#
- 1...Sxa5
- 2.Qb8#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qe8+!
- 1...Qxf8
- 1.f8B?
- 1...Qxf8
- 2.Qxc7#
- 1...Sxa5
- 2.Qb8#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qe8+!
- 1...Qxf8
- 1.f8R?
- threat
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxc6#
- 2.Qxb7#
- 1...Qe8+!
- threat
- 1.g8Q?
- threat
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxc6#
- 2.Qxb7#
- 1...Qxg8+!
- threat
- 1.g8S?
- 1...Sxa5
- 2.Qb8#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qxg8+!
- 1...Sxa5
- 1.g8B?
- 1...Sxa5
- 2.Qb8#
- 1...Qe8
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- 1...Sc5
- 2.Qb8#
- 1...Sd6
- 2.Qb8#
- 1...Qxg8+!
- 1...Sxa5
- 1.g8R?
- threat
- 2.Qxc7#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxc6#
- 2.Qxb7#
- 1...Qxg8+!
- threat
- 1.Kg5?
- Keys
- 1.Qa6!
- threat
- 2.Sb6#
- 1...Qe8
- 2.fxe8Q#
- 2.fxe8R#
- 1...Qf8
- 2.gxf8Q#
- 2.gxf8R#
- 1...Qg8
- 2.fxg8Q#
- 2.fxg8R#
- 1...Qh8
- 2.gxh8Q#
- 2.gxh8R#
- 1...Rc1
- 2.Qxb7#
- 1...Rc2
- 2.Qxb7#
- 1...Rc3
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rc5
- 2.Qxb7#
- 1...Rc6
- 2.Qxb7#
- threat
- 1.Qa6!
This anticipates 65708(1999)
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(f);N_GUARD,P_PINP(F)::QAR1(B),XR(b)
- Q(f);N_GUARD::QAR1(B),XR(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XR(b)
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
- S(a);OGATE,XS(A)::QAR1(B)
- S(a);OGATE::QAR1(B)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- S(a);OGATE,XS(A)::QAR1(B)
- Q(f);N_GUARD::QAR1(B),XR(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XR(b)
- R(b);N_GUARD::QAB1(B),XS(a)
- S(a);OGATE::QAR1(B)
- Refutation
- R(b);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- S(a);OGATE,XS(A)::QAR1(B)
- Q(f);N_GUARD::QAR1(B),XR(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XR(b)
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- S(A);
- Vars
- Q(f);N_GUARD,P_PINP(F)::QAR1(B),XR(b)
- Q(f);N_GUARD::QAR1(B),XR(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XR(b)
- S(a);OGATE::QAR1(B)
- Refutation
- R(b);P_PINB(C),XS(A)
- Try
- S(H);XR(b)
- Threat
- DUALS(3)
- Vars
- Q(f);P_PINP(F)::P=Q
- Q(f);::P=Q
- Q(f);P_PINP(G)::P=Q
- Refutation
- Q(f);XS(H)
- Try
- Q(B);P_PINR(b)
- Threat
- S(H)
- Vars
- Q(f);N_GUARD,P_PINP(F)::QAR1(B),XR(b)
- Q(f);N_GUARD::QAR1(B),XR(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XR(b)
- Refutation
- R(b);N_SPINR(b),P_PINB(C),XQ(B)
- Try
- Q(B);
- Threat
- S(H)
- Vars
- Q(f);N_GUARD,P_PINP(F)::QAR1(B),XR(b)
- Q(f);N_GUARD::QAR1(B),XR(b)
- Q(f);N_GUARD,P_PINP(G)::QAR1(B),XR(b)
- R(b);OGATE::QAR1(B)
- Refutation
- S(a);XS(A)
- Try
- P(F);P_PINQ(f)
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(f);CHECK
- Try
- P(F);
- Vars
- Q(f);N_GUARD,XS(F)::QAR1(B),XR(b)
- S(a);OGATE,XS(A)::QAR1(B)
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- P(F);
- Vars
- Q(f);N_GUARD,XB(F)::QAR1(B),XR(b)
- S(a);OGATE,XS(A)::QAR1(B)
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK
- Try
- P(F);P_PINQ(f)
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(f);CHECK
- Try
- P(G);P_PINQ(f)
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XQ(G)
- Try
- P(G);
- Vars
- S(a);OGATE,XS(A)::QAR1(B)
- Q(f);N_GUARD,P_PINP(F)::QAR1(B),XR(b)
- Q(f);N_GUARD::QAR1(B),XR(b)
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK,XS(G)
- Try
- P(G);
- Vars
- S(a);OGATE,XS(A)::QAR1(B)
- Q(f);N_GUARD,P_PINP(F)::QAR1(B),XR(b)
- Q(f);N_GUARD::QAR1(B),XR(b)
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
- S(a);OGATE::QAR1(B)
- Refutation
- Q(f);CHECK,XB(G)
- Try
- P(G);P_PINQ(f)
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XR(G)
- Try
- Actual
- Q(B);N_PINS(c),P_PINS(a)
- Threat
- S(H)
- Vars
- Q(f);OGATE,P_PINP(F)::PXQ(f)=Q
- Q(f);OGATE::PXQ(f)=Q
- Q(f);OGATE,P_PINP(G)::PXQ(f)=Q
- R(b);N_GUARD::QAB1(B),XS(a)
- R(b);N_GUARD,P_PINB(C)::QAB1(B),XS(a)
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).