MESON Chess Problem Database
Problem Display
PID: 177966 (3r3n/3BB3/ppp2n2/3P1Q2/2kpR3/KR6/1P6/8 w - - 0 1)
Kisis, Imants J
Sahs (Latvia), 1987
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sxd5
- 2.Qf1#
- 1...b5
- 2.Rc3#
- 1...cxd5
- 2.Rc3#
- 2.Qf1#
- 1...c5
- 2.Rc3#
- 1...Sxd5
- Tries
- 1.Bxc6?
- threat
- 2.Rc3#
- 2.Qf1#
- 1...Sxd5
- 2.Qf1#
- 1...Rd6
- 2.Rc3#
- 1...Sxe4!
- threat
- 1.Be6?
- threat
- 2.Qf1#
- 1...Sxe4
- 2.d6#
- 1...Rd6!
- threat
- 1.Re1?
- threat
- 2.Rc1#
- 2.Rb4#
- 1...Sxd5
- 2.Qd3#
- 1...d3
- 2.Rb4#
- 2.Qxd3#
- 1...a5
- 2.Rc1#
- 1...c5
- 2.Rc1#
- 1...Se4!
- threat
- 1.Re2?
- threat
- 2.Rc2#
- 2.Rb4#
- 1...Sxd5
- 2.Qd3#
- 1...d3
- 2.Rb4#
- 2.Qxd3#
- 1...a5
- 2.Rc2#
- 1...c5
- 2.Rc2#
- 1...Se4!
- threat
- 1.Re5?
- threat
- 2.Rb4#
- 2.Qc2#
- 2.Qd3#
- 1...Sxd5
- 2.Qd3#
- 1...d3
- 2.Rb4#
- 2.Qxd3#
- 1...a5
- 2.Qc2#
- 2.Qd3#
- 1...c5
- 2.Qc2#
- 2.Qd3#
- 1...Se4!
- threat
- 1.Qe6?
- threat
- 2.Qxc6#
- 1...Sxe4
- 2.dxc6#
- 1...Sxd7
- 2.dxc6#
- 1...cxd5
- 2.Rc3#
- 2.Qc6#
- 1...c5
- 2.Rc3#
- 1...Rc8!
- threat
- 1.Qe5?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 1...c5
- 2.Rc3#
- 1...Sxe4!
- threat
- 1.Qxf6?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 2.Qxc6#
- 1...Kxd5
- 2.Rxd4#
- 2.Qxd4#
- 2.Qxc6#
- 2.Qe6#
- 1...cxd5
- 2.Rc3#
- 2.Rxd4#
- 2.Qxd4#
- 2.Qf1#
- 2.Qc6#
- 1...Rc8
- 2.Rxd4#
- 2.Qxd4#
- 1...c5!
- threat
- 1.d6?
- threat
- 2.Rc3#
- 1...Sxe4
- 2.Be6#
- 1...Sd5!
- threat
- 1.Bxc6?
- Keys
- 1.dxc6!
- threat
- 2.Rc3#
- 1...Sxe4
- 2.Qe6#
- 1...Sd5
- 2.Qf1#
- threat
- 1.dxc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- S(f);SBLOCK,XP(E)::QAB(F)
- P(d);SBLOCK::R1(C)
- P(e);::R1(C)
- Tries
- Try
- B(G);XP(e)
- Threat
- DUALS(2)
- Vars
- S(f);XP(E)::QAB(F)
- R(g);::R1(C)
- Refutation
- S(f);N_SPINP(b),XR(D)
- Try
- B(G);
- Threat
- QAB(F)
- Vars
- S(f);N_GUARD,N_SPINP(b),XR(D)::B(G)+P(E)
- Refutation
- R(g);
- Try
- R(D);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(f);SBLOCK,XP(E)::QAB1(F)
- P(c);::R(D)
- P(e);::R(D)
- Refutation
- S(f);
- Try
- R(D);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- S(f);SBLOCK,XP(E)::QAB1(F)
- P(c);::R(D)
- P(e);::R(D)
- Refutation
- S(f);
- Try
- R(D);N_PINP(b)
- Threat
- DUALS(3)
- Vars
- S(f);XP(E)::QAB1(F)
- Refutation
- S(f);
- Try
- Q(F);
- Threat
- QAR2(F),XP(e)
- Vars
- S(f);N_GUARD,N_SPINP(b),XR(D)::QAB(F)+P(E),XP(e)
- S(f);N_GUARD,XB(G)::QAB(F)+P(E),XP(e)
- P(e);::R1(C)
- Refutation
- R(g);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(e);::R1(C)
- Refutation
- S(f);N_SPINP(b),XR(D)
- Try
- Q(F);XS(f)
- Threat
- DUALS(3)
- Refutation
- P(e);
- Try
- P(E);
- Threat
- R1(C)
- Vars
- S(f);N_GUARD,N_SPINP(b),XR(D)::B(G)
- Refutation
- S(f);
- Try
- Actual
- P(E);XP(e)
- Threat
- R1(C)
- Vars
- S(f);N_GUARD,N_SPINP(b),XR(D)::QAB(F)
- S(f);SBLOCK::QAB(F)
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