MESON Chess Problem Database
Problem Display
PID: 260782 (K7/5N2/4p2B/1Q1P4/1p1kp2R/6N1/R1B5/4r3 w - - 0 1)
Pachl, Franz
2nd Prize, Neue Zurcher Zeitung, 2001
#2
9 + 5
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qc5#
- 1...Ra1
- 2.Se2#
- 1...Rb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...exd5
- 2.Qxb4#
- 1...Kc3
- Tries
- 1.Sxe4?
- threat
- 2.Qd3#
- 2.Qc5#
- 1...Re3
- 2.Qc5#
- 1...Rd1
- 2.Qc5#
- 1...Rxe4!
- threat
- 1.Sf5+?
- 1...Kc3
- 2.Qc6#
- 2.Qc5#
- 1...exf5!
- 1...Kc3
- 1.Bb3?
- threat
- 2.Qc4#
- 1...Kc3
- 2.Qc4#
- 1...Rc1
- 2.Se2#
- 1...exd5!
- threat
- 1.Bd3?
- threat
- 2.Qc4#
- 1...Kc3
- 2.Qc4#
- 1...Rc1
- 2.Se2#
- 1...exd5!
- threat
- 1.Bd2?
- 1...exd5
- 2.Sf5#
- 2.Qxb4#
- 1...Ra1
- 2.Se2#
- 2.Rxe4#
- 1...Rb1
- 2.Se2#
- 2.Rxe4#
- 1...Rc1
- 2.Se2#
- 2.Rxe4#
- 1...Rd1
- 2.Se2#
- 2.Rxe4#
- 1...Rf1
- 2.Se2#
- 2.Rxe4#
- 1...Rg1
- 2.Se2#
- 2.Rxe4#
- 1...Rh1
- 2.Se2#
- 2.Rxe4#
- 1...Re2
- 2.Sxe2#
- 1...b3
- 2.Ra4#
- 1...e5
- 2.Sf5#
- 1...Re3!
- 1...exd5
- 1.Bf8?
- threat
- 2.Qd3#
- 2.Qc5#
- 1...Kc3
- 2.Qxb4#
- 1...Re3
- 2.Qc5#
- 1...Rd1
- 2.Qc5#
- 1...Ke3!
- threat
- 1.Ra5?
- threat
- 2.Qd3#
- 2.Qxb4#
- 2.Qc5#
- 1...Re3
- 2.Qxb4#
- 2.Qc5#
- 1...Rb1
- 2.Se2#
- 2.Qd3#
- 2.Qc5#
- 1...Rd1
- 2.Se2#
- 2.Qxb4#
- 2.Qc5#
- 1...b3
- 2.Qd3#
- 2.Qb4#
- 2.Qc5#
- 1...Kc3!
- threat
- 1.Rxe4+?
- 1...Kc3
- 2.Rc4#
- 2.Qd3#
- 2.Qc4#
- 2.Qc6#
- 2.Qxb4#
- 2.Qc5#
- 1...Rxe4!
- 1...Kc3
- 1.Rh5?
- threat
- 2.Qxb4#
- 1...Kc3
- 2.Qc5#
- 1...Rb1
- 2.Se2#
- 1...b3
- 2.Qb4#
- 1...e5!
- threat
- 1.Qc6?
- 1...exd5
- 2.Sf5#
- 1...Ra1
- 2.Se2#
- 2.Rxe4#
- 1...Rb1
- 2.Se2#
- 2.Rxe4#
- 1...Rc1
- 2.Se2#
- 2.Rxe4#
- 1...Rd1
- 2.Se2#
- 2.Rxe4#
- 1...Rf1
- 2.Se2#
- 2.Rxe4#
- 1...Rg1
- 2.Se2#
- 2.Rxe4#
- 1...Rh1
- 2.Se2#
- 2.Rxe4#
- 1...Re2
- 2.Sxe2#
- 1...b3
- 2.Ra4#
- 1...e5
- 2.Sf5#
- 1...Re3!
- 1...exd5
- 1.Qb6+?
- 1...Kc3
- 2.Qc5#
- 1...Kxd5
- 2.Bb3#
- 1...Kc4!
- 1...Kc3
- 1.dxe6?
- 1...Kc3
- 2.Qc5#
- 1...Re3
- 2.Bg7#
- 1...Ra1
- 2.Se2#
- 1...Rb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Rh1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...b3!
- 1...Kc3
- 1.Sxe4?
- Keys
- 1.Bxe4!
- threat
- 2.Qxb4#
- 1...Kc3
- 2.Qd3#
- 1...Rxe4
- 2.Se2#
- 1...Rb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...b3
- 2.Qb4#
- threat
- 1.Bxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- K(c);N_GUARD,N_SPINP(d),S_FLIGHT::QAR2(E)
- R(a);N_GUARD,P_PINR(A)::S(C)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD::S(C),XR(a)
- P(e);SBLOCK,XP(F)::QAR2(E),XP(b)
- Tries
- Try
- S(C);XP(d)
- Threat
- DUALS(2)
- Vars
- R(a);::QAB1(E)
- Refutation
- R(a);P_SPINR(a),XS(C)
- Try
- S(C);CHECK
- Refutation
- P(e);XS(C)
- Try
- B(B);
- Threat
- QAR1(E)
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAR1(E)
- R(a);N_GUARD::S(C)
- Refutation
- P(e);XP(F)
- Try
- B(B);
- Threat
- QAR1(E)
- Vars
- K(c);N_SPINP(d),S_FLIGHT::QAR1(E)
- R(a);N_GUARD::S(C)
- Refutation
- P(e);XP(F)
- Try
- B(G);
- Vars
- R(a);N_GUARD::S(C),XR(a)
- P(b);OGATEB::R(A)
- P(e);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- K(c);N_GUARD,N_SPINP(d),S_FLIGHT::QAB1(E),XP(b)
- R(a);SBLOCK::QAB1(E)
- R(a);::QAB1(E)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT
- Try
- R(A);
- Threat
- DUALS(3)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT
- Try
- R(D);CHECK,XP(d)
- Refutation
- R(a);XR(D)
- Try
- R(D);N_PINP(d)
- Threat
- QAR2(E),XP(b)
- Vars
- K(c);N_GUARD,S_FLIGHT::QAR2(E)
- R(a);N_GUARD::S(C)
- P(b);::QAR2(E)
- Refutation
- P(e);
- Try
- Q(E);
- Vars
- P(e);N_GUARD,XP(F)::S(C)
- R(a);N_GUARD::S(C),XR(a)
- P(b);OGATEB::R(A)
- P(e);N_GUARD::S(C)
- Refutation
- R(a);
- Try
- Q(E);CHECK
- Vars
- K(c);N_GUARD,N_SPINP(d),S_FLIGHT::QAR2(E)
- K(c);N_GUARD,N_SPINP(d),P-FLIGHT,XP(F)::B(B)
- Refutation
- K(c);P-FLIGHT
- Try
- P(F);XP(e)
- Vars
- K(c);N_GUARD,N_SPINP(d),S_FLIGHT::QAR2(E)
- R(a);SBLOCK::B(G)
- R(a);N_GUARD,P_PINR(A)::S(C)
- R(a);N_GUARD::S(C)
- R(a);N_GUARD::S(C),XR(a)
- Refutation
- P(b);
- Try
- Actual
- B(B);XP(d)
- Threat
- QAR2(E),XP(b)
- Vars
- K(c);N_GUARD,S_FLIGHT::QAR1(E)
- R(a);N_GUARD,P_SPINR(a),XB(B)::S(C)
- R(a);N_GUARD::S(C)
- P(b);::QAR2(E)
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).