MESON Chess Problem Database
Problem Display
PID: 91001 (3Q1b2/q2p1p1K/1p1k1p2/pP1P2P1/1P1Bp2N/N2R4/B3R3/5r2 w - - 0 1)
Maleika, Gerhard
Die Schwalbe, 1976
#2
12 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc7
- 2.Qxf8#
- 1...Ra1
- 2.Sf5#
- 1...Rb1
- 2.Sf5#
- 1...Rc1
- 2.Sf5#
- 1...Rd1
- 2.Sf5#
- 1...Re1
- 2.Sf5#
- 1...Rg1
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Qc7
- Tries
- 1.Bc5+?
- 1...bxc5
- 2.Sc4#
- 1...Ke5!
- 1...bxc5
- 1.Be5+?
- 1...fxe5
- 2.Sc4#
- 1...Kxe5!
- 1...fxe5
- 1.Bxb6?
- threat
- 2.Sc4#
- 1...exd3
- 2.Qxf8#
- 1...Qc7
- 2.Bxc7#
- 1...Rc1
- 2.Qxf6#
- 1...Ke5!
- threat
- 1.Bxf6?
- threat
- 2.Sc4#
- 1...exd3
- 2.Be5#
- 1...Qc7
- 2.Qxf8#
- 1...Rc1
- 2.Sf5#
- 1...axb4!
- threat
- 1.Rc2?
- threat
- 2.Rc6#
- 2.Qxf8#
- 1...Qb8
- 2.Rc6#
- 1...Qb7
- 2.Qxf8#
- 1...Qc7
- 2.Qxf8#
- 1...Rc1
- 2.Sf5#
- 2.Qxf6#
- 2.Qxf8#
- 1...Bh6
- 2.Rc6#
- 1...Be7
- 2.Rc6#
- 1...Bg7
- 2.Rc6#
- 1...Qa8!
- threat
- 1.Rf2?
- threat
- 2.Sf5#
- 1...Rh1
- 2.Rxf6#
- 1...f5
- 2.Sxf5#
- 1...Rxf2!
- threat
- 1.Rc3?
- threat
- 2.Rc6#
- 2.Qxf8#
- 1...Qb8
- 2.Rc6#
- 1...Qb7
- 2.Qxf8#
- 1...Qc7
- 2.Qxf8#
- 1...Rc1
- 2.Sf5#
- 2.Qxf6#
- 2.Qxf8#
- 1...Bh6
- 2.Rc6#
- 1...Be7
- 2.Rc6#
- 1...Bg7
- 2.Rc6#
- 1...Qa8!
- threat
- 1.Rf3?
- threat
- 2.Sf5#
- 1...Rh1
- 2.Rxf6#
- 1...f5
- 2.Sxf5#
- 1...Rxf3!
- threat
- 1.Qxb6+?
- 1...Ke7
- 2.Rxe4#
- 1...Qxb6!
- 1...Ke7
- 1.Qb8+?
- 1...Ke7
- 2.Rxe4#
- 2.d6#
- 1...Qc7
- 2.Qxf8#
- 1...Qxb8!
- 1...Ke7
- 1.Bc5+?
- Keys
- 1.Bf2!
- threat
- 2.Sc4#
- 1...Ke5
- 2.Qxf6#
- 1...exd3
- 2.Sf5#
- 1...Qc7
- 2.Qxf6#
- 1...Rc1
- 2.Bg3#
- threat
- 1.Bf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(g);SBLOCK::QAB(L),XB(j)
- R(a);N_GUARD::S(G)
- R(a);N_GUARD::S(G),XR(a)
- Tries
- Try
- B(F);CHECK
- Vars
- P(d);XB(F)::S(C)
- Refutation
- K(e);N_SPINP(h),P_SPINP(b),S_FLIGHT
- Try
- B(F);CHECK
- Vars
- P(f);XB(F)::S(C)
- Refutation
- K(e);N_SPINP(h),P_SPINP(b),S_FLIGHT,XB(F)
- Try
- B(F);XP(d)
- Threat
- S(C)
- Vars
- P(b);XR(D)::QAB(L),XB(j)
- Q(g);N_GUARD::B(F),XQ(g)
- R(a);N_GUARD::QAR2(L),XP(f)
- Refutation
- K(e);N_SPINP(h),P_SPINP(b),S_FLIGHT
- Try
- B(F);XP(f)
- Threat
- S(C)
- Vars
- P(b);XR(D)::B(F)
- Q(g);SBLOCK::QAB(L),XB(j)
- R(a);N_GUARD::S(G)
- Refutation
- P(c);XP(E)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(g);::R1(B)
- Q(g);::QAB(L),XB(j)
- B(j);::R1(B)
- Refutation
- Q(g);
- Try
- R(B);
- Threat
- S(G)
- Vars
- R(a);N_GUARD,P_PINS(G)::R(B),XP(f)
- P(f);::S(G),XP(f)
- Refutation
- R(a);XR(B)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(g);::R1(D)
- Q(g);::QAB(L),XB(j)
- B(j);::R1(D)
- Refutation
- Q(g);
- Try
- R(D);
- Threat
- S(G)
- Vars
- R(a);N_GUARD,P_PINS(G)::R(D),XP(f)
- P(f);::S(G),XP(f)
- Refutation
- R(a);XR(D)
- Try
- Q(L);CHECK,N_PINP(h),XP(d)
- Vars
- K(e);P_SPINP(b),S_FLIGHT::R(B),XP(b)
- Refutation
- Q(g);XQ(L)
- Try
- Q(L);CHECK,N_PINP(h)
- Vars
- Q(g);P_SPINQ(g),SBLOCK::QAB(L),XB(j)
- Refutation
- Q(g);XQ(L)
- Try
- Actual
- B(F);
- Threat
- S(C)
- Vars
- K(e);N_SPINP(h),P_SPINP(b),S_FLIGHT::QAB1(L),XP(f)
- P(b);XR(D)::S(G)
- Q(g);SBLOCK::QAR2(L),XP(f)
- R(a);N_GUARD::B(F)
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).