MESON Chess Problem Database
Problem Display
PID: 49464 (6rb/Q3B2R/4kp1R/4p1p1/p3B1K1/1b3Np1/qp6/1nr5 w - - 0 1)
Queck, Rudolf
Schach-Express, 1949
#2
7 + 13
SOLUTION
- SOUND
- Sets
- 1...Rg7
- 2.Rxf6#
- 1...Ra8
- 2.Sxg5#
- 1...Rb8
- 2.Sxg5#
- 1...Rc8
- 2.Sxg5#
- 1...Rd8
- 2.Sxg5#
- 1...Re8
- 2.Sxg5#
- 1...Rf8
- 2.Sxg5#
- 1...Bd5
- 2.Bf5#
- 1...Bg7
- 2.Sxg5#
- 1...Rg7
- Tries
- 1.Bc5?
- threat
- 2.Re7#
- 2.Qb6#
- 2.Qa6#
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Rxc5
- 2.Qd7#
- 2.Qe7#
- 1...Rd1
- 2.Re7#
- 2.Qe7#
- 2.Qf7#
- 1...Ra8
- 2.Sxg5#
- 2.Re7#
- 2.Qb6#
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Rb8
- 2.Sxg5#
- 2.Re7#
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Rc8
- 2.Sxg5#
- 2.Re7#
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Rd8
- 2.Sxg5#
- 2.Re7#
- 2.Qe7#
- 2.Qf7#
- 1...Re8
- 2.Sxg5#
- 2.Qb6#
- 2.Qa6#
- 2.Qd7#
- 2.Qf7#
- 1...Rf8
- 2.Sxg5#
- 2.Re7#
- 2.Qb6#
- 2.Qa6#
- 2.Qd7#
- 2.Qe7#
- 1...Bc4
- 2.Re7#
- 2.Qb6#
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Bd5
- 2.Bf5#
- 2.Re7#
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Bg7
- 2.Sxg5#
- 2.Qe7#
- 1...Rg7!
- threat
- 1.Bxf6?
- threat
- 2.Bg7#
- 2.Qd7#
- 2.Qe7#
- 1...Kd6
- 2.Bxe5#
- 2.Be7#
- 2.Qe7#
- 1...Bxf6
- 2.Qd7#
- 2.Qe7#
- 1...Rg6
- 2.Qe7#
- 1...Rg7
- 2.Bxg7#
- 1...Qa3
- 2.Bg7#
- 2.Qd7#
- 1...Rd1
- 2.Bg7#
- 2.Qe7#
- 1...Rh1
- 2.Qb6#
- 2.Qa6#
- 2.Qd7#
- 2.Qe7#
- 1...Rd8
- 2.Bg7#
- 2.Bxh8#
- 2.Qe7#
- 1...Re8
- 2.Bg7#
- 2.Bxh8#
- 2.Qd7#
- 1...Rf8
- 2.Qd7#
- 2.Qe7#
- 1...Bg7
- 2.Bxg7#
- 2.Qe7#
- 1...Rc7!
- threat
- 1.Bd8?
- threat
- 2.Qd7#
- 2.Qe7#
- 1...Kd6
- 2.Qe7#
- 1...Rxd8
- 2.Qe7#
- 1...Qa3
- 2.Qd7#
- 1...Rd1
- 2.Qe7#
- 1...Rg7
- 2.Rxf6#
- 1...Re8
- 2.Qd7#
- 1...Bg7
- 2.Qe7#
- 1...Rc7!
- threat
- 1.Rg7?
- threat
- 2.Sxg5#
- 2.Rxf6#
- 1...Rxg7
- 2.Rxf6#
- 1...Bxg7
- 2.Sxg5#
- 1...Rf8
- 2.Sxg5#
- 1...Bd1
- 2.Rxf6#
- 1...Rc7!
- threat
- 1.Qb6+?
- 1...Rc6
- 2.Qxc6#
- 1...Kd7!
- 1...Rc6
- 1.Qa6+?
- 1...Rc6
- 2.Qxc6#
- 1...Kd7!
- 1...Rc6
- 1.Bc5?
- Keys
- 1.Qb7!
- threat
- 2.Bf5#
- 1...Rg7
- 2.Rxf6#
- 1...Bg7
- 2.Sxg5#
- 1...Rc4
- 2.Qd5#
- 1...Rc6
- 2.Qxc6#
- 1...Bc2
- 2.Qc6#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(l);S_CUTB(m)::R1(D),XP(k)
- R(l);N_GUARD::S(A),XP(i)
- B(e);SBLOCK::B(B)
- B(m);S_CUTR(l)::S(A),XP(i)
- Tries
- Try
- B(F);
- Threat
- DUALS(6)
- Refutation
- R(l);
- Try
- B(F);XP(k)
- Threat
- DUALS(3)
- Vars
- R(l);::QAR1(E)
- R(l);::R(D)+B(F),XR(l)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- K(j);P-FLIGHT::QAB1(E)
- R(l);XB(F)::QAR1(E)
- Q(c);::QAB1(E)
- R(b);::QAR1(E)
- R(l);S_CUTB(m)::R1(D),XP(k)
- R(l);::QAB1(E)
- B(m);::QAR1(E)
- Refutation
- R(b);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(l);XR(G)::R1(D),XP(k)
- B(m);XR(G)::S(A),XP(i)
- R(l);::S(A),XP(i)
- B(e);P_PINS(A)::R1(D),XP(k)
- Refutation
- R(b);
- Try
- Q(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR2(E),XR(b)
- Refutation
- K(j);N_SPINP(k),S_FLIGHT
- Try
- Q(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR2(E),XR(b)
- Refutation
- K(j);N_SPINP(k),S_FLIGHT
- Try
- Actual
- Q(E);
- Threat
- B(B)
- Vars
- R(l);S_CUTB(m)::R1(D),XP(k)
- B(m);S_CUTR(l)::S(A),XP(i)
- R(b);P_PINB(B),S_CUTB(e)::QAB1(E)
- R(b);N_GUARD::QAR2(E),XR(b)
- B(e);S_CUTR(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).