MESON Chess Problem Database
Problem Display
PID: 37453 (8/3p1K2/8/1b1Qp2R/r3pk2/1p1R1Pp1/q5P1/b4nB1 w - - 0 1)
Aschwanden, Reto
Maeder, Thomas
3rd Prize, The Problemist, 1993/I
#2
7 + 11
| 3454 | kunstschach (1987-1996) (Hoffmann) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qxe4#
- 1...Rd4
- 2.Qxe5#
- 1...Ra5
- 2.Qxe4#
- 1...Ra6
- 2.Qxe4#
- 1...Ra7
- 2.Qxe4#
- 1...Ra8
- 2.Qxe4#
- 1...Bd4
- 2.Qxe4#
- 1...Sd2
- 2.Be3#
- 1...Sh2
- 2.Be3#
- 1...Se3
- 2.Bxe3#
- 1...exf3
- 2.Qxf3#
- 1...Ra3
- Tries
- 1.Kf6?
- threat
- 2.Rh4#
- 2.Rf5#
- 1...exf3
- 2.Rh4#
- 2.Qxf3#
- 1...Sh2
- 2.Be3#
- 2.Rf5#
- 1...Se3
- 2.Bxe3#
- 1...Ra6+!
- threat
- 1.Kg6?
- threat
- 2.Rh4#
- 2.Rf5#
- 2.Qf7#
- 1...exf3
- 2.Rh4#
- 2.Qxf3#
- 1...Bc4
- 2.Rh4#
- 2.Rf5#
- 2.Qxe4#
- 1...Sh2
- 2.Be3#
- 2.Rf5#
- 2.Qf7#
- 1...Se3
- 2.Bxe3#
- 1...b2
- 2.Rh4#
- 2.Rf5#
- 2.Qxe5#
- 1...Ra6+!
- threat
- 1.Ke7?
- threat
- 2.Qf7#
- 1...exf3
- 2.Qxf3#
- 1...Ra6
- 2.Qxe4#
- 1...Bc4
- 2.Qxe4#
- 1...Se3
- 2.Bxe3#
- 1...b2
- 2.Qxe5#
- 1...Qa3+!
- threat
- 1.Bd4?
- threat
- 2.Qxe4#
- 2.Qxe5#
- 1...Rxd4
- 2.Qxe5#
- 1...Bxd4
- 2.Qxe4#
- 1...Bxd3
- 2.Qxe5#
- 1...exd3
- 2.Qe4#
- 2.Qxe5#
- 1...exf3
- 2.Qxf3#
- 1...exd4
- 2.Rh4#
- 2.Rf5#
- 2.Qxe4#
- 2.Qe5#
- 2.Qf5#
- 2.Qg5#
- 2.Qd6#
- 1...Qe2
- 2.Qxe5#
- 1...Bc6
- 2.Qxe5#
- 1...Sd2
- 2.Be3#
- 2.Qxe5#
- 1...b2
- 2.Bxe5#
- 1...e3
- 2.Qe4#
- 2.Qxe5#
- 1...d6
- 2.Qxe4#
- 1...Bc4!
- threat
- 1.Rd4?
- threat
- 2.Qxe4#
- 2.Qxe5#
- 1...Qxg2
- 2.Qxe4#
- 1...Rxd4
- 2.Qxe5#
- 1...Bxd4
- 2.Qxe4#
- 1...exd4
- 2.Rh4#
- 2.Rf5#
- 2.Qxe4#
- 2.Qe5#
- 2.Qf5#
- 2.Qg5#
- 2.Qd6#
- 1...Qf2
- 2.Qxe4#
- 1...Bc4
- 2.Rxe4#
- 1...Qb1
- 2.Qxe5#
- 1...Qc2
- 2.Qxe5#
- 1...Qe2
- 2.Qxe5#
- 1...Bd3
- 2.Qxe5#
- 1...Bc6
- 2.Qxe5#
- 1...Sd2
- 2.Qxe5#
- 1...d6
- 2.Qxe4#
- 1...b2!
- threat
- 1.Qe6?
- threat
- 2.Rf5#
- 2.Qg4#
- 2.Qf5#
- 2.Qf6#
- 2.Qh6#
- 1...exf3
- 2.Qf5#
- 1...Bc4
- 2.Rf5#
- 1...Ra6
- 2.Rf5#
- 2.Qg4#
- 2.Qf5#
- 1...Sh2
- 2.Be3#
- 2.Rf5#
- 2.Qf5#
- 2.Qf6#
- 2.Qh6#
- 1...Se3
- 2.Bxe3#
- 2.Qh6#
- 1...b2
- 2.Rf5#
- 1...dxe6!
- threat
- 1.Kf6?
- Keys
- 1.Kg7!
- threat
- 2.Qf7#
- 1...exf3
- 2.Qxf3#
- 1...Ra6
- 2.Qxe4#
- 1...Bc4
- 2.Qxe4#
- 1...Se3
- 2.Bxe3#
- 1...b2
- 2.Qxe5#
- threat
- 1.Kg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(f);N_GUARD::QAR1(E),XP(g)
- R(f);S_CUTB(a)::QAB1(E),XP(j)
- B(a);S_CUTR(f)::QAR1(E),XP(g)
- S(b);N_GUARD::B(A)
- S(b);N_GUARD::B(A),XS(b)
- P(g);OGATE,XP(D)::QAR1(E),XP(g)
- Tries
- Try
- K(G);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::B(A),XS(b)
- Refutation
- R(f);CHECK
- Try
- K(G);S_FLIGHT
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD::B(A),XS(b)
- Refutation
- R(f);CHECK
- Try
- K(G);P-FLIGHT
- Threat
- QAR(E)
- Vars
- P(g);OGATE,XP(D)::QAR1(E),XP(g)
- R(f);N_GUARD::QAR1(E),XP(g)
- B(i);S_CUTR(f)::QAR1(E),XP(g)
- S(b);N_GUARD::B(A),XS(b)
- P(d);S_CUTB(a)::QAB1(E),XP(j)
- Refutation
- Q(c);CHECK
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(f);XB(A)::QAB1(E),XP(j)
- B(a);XB(A)::QAR1(E),XP(g)
- B(i);XR(C)::QAB1(E),XP(j)
- P(g);OGATE,XP(D)::QAR1(E),XP(g)
- Q(c);::QAB1(E),XP(j)
- B(i);::QAB1(E),XP(j)
- P(d);P_PINQ(E),S_CUTB(a)::B(A),XP(j)
- P(k);::QAR1(E),XP(g)
- Refutation
- B(i);P_PINQ(E)
- Try
- R(C);P_PINP(g)
- Threat
- DUALS(2)
- Vars
- Q(c);XP(B)::QAR1(E),XP(g)
- R(f);N_SPINP(g),XR(C)::QAB1(E),XP(j)
- B(a);N_SPINP(g),XR(C)::QAR1(E),XP(g)
- Q(c);::QAR1(E),XP(g)
- B(i);P_PINQ(E),S_CUTR(f)::R1(C),XP(g)
- Q(c);::QAB1(E),XP(j)
- B(i);::QAB1(E),XP(j)
- S(b);::QAB1(E),XP(j)
- P(k);::QAR1(E),XP(g)
- Refutation
- P(d);P_PINQ(E)
- Try
- Q(E);
- Threat
- DUALS(5)
- Vars
- P(g);XP(D)::QAR1(E)
- B(i);P_PINQ(E)::R1(F)
- P(d);P_PINQ(E)::R1(F)
- Refutation
- P(k);XQ(E)
- Try
- Actual
- K(G);P-FLIGHT
- Threat
- QAR(E)
- Vars
- P(g);OGATE,XP(D)::QAR1(E),XP(g)
- R(f);N_GUARD::QAR1(E),XP(g)
- B(i);S_CUTR(f)::QAR1(E),XP(g)
- S(b);N_GUARD::B(A),XS(b)
- P(d);S_CUTB(a)::QAB1(E),XP(j)
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).