MESON Chess Problem Database
Problem Display
PID: 267804 (3R4/2pN3K/Q7/2pB2bR/3k2N1/8/1P1p4/2r5 w - - 0 1)
Myllyniemi, Matti Arvo
diagrammes, 1976
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.Sdf6#
- 1...Ra1
- 2.Qc4#
- 1...Rb1
- 2.Qc4#
- 1...Rd1
- 2.Qc4#
- 1...Re1
- 2.Qc4#
- 1...Rf1
- 2.Qc4#
- 1...Rg1
- 2.Qc4#
- 1...Rh1
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Kxd5
- Tries
- 1.Sde5?
- threat
- 2.Sf3#
- 2.Sc6#
- 2.Qd3#
- 1...d1Q
- 2.Sc6#
- 1...d1B
- 2.Sc6#
- 2.Qd3#
- 1...d1R
- 2.Sf3#
- 2.Sc6#
- 1...Rf1
- 2.Sc6#
- 2.Qd3#
- 2.Qc4#
- 1...Rc3
- 2.Sc6#
- 1...Rc4
- 2.Qxc4#
- 1...c6
- 2.Sf3#
- 2.Sxc6#
- 2.Qd3#
- 1...c4!
- threat
- 1.Sb8?
- threat
- 2.Sc6#
- 1...Rc4
- 2.Qxc4#
- 1...c6
- 2.Sxc6#
- 1...c4!
- threat
- 1.Sf8?
- threat
- 2.Se6#
- 1...Rc4
- 2.Qxc4#
- 1...Re1
- 2.Qc4#
- 1...c4!
- threat
- 1.Bh1?
- threat
- 2.Sdf6#
- 1...Bxd8
- 2.Rd5#
- 1...Bf4
- 2.Sde5#
- 2.Rd5#
- 1...Bf6
- 2.Sdxf6#
- 2.Rd5#
- 1...Be7
- 2.Rd5#
- 1...c4!
- threat
- 1.Bg2?
- threat
- 2.Sdf6#
- 1...Bxd8
- 2.Rd5#
- 1...Bf4
- 2.Sde5#
- 2.Rd5#
- 1...Bf6
- 2.Sdxf6#
- 2.Rd5#
- 1...Be7
- 2.Rd5#
- 1...c4!
- threat
- 1.Bf3?
- threat
- 2.Sdf6#
- 1...Bxd8
- 2.Rd5#
- 1...Bf4
- 2.Sde5#
- 2.Rd5#
- 1...Bf6
- 2.Sdxf6#
- 2.Rd5#
- 1...Be7
- 2.Rd5#
- 1...c4!
- threat
- 1.Qa4+?
- 1...Kd3
- 2.Qe4#
- 1...Kxd5
- 2.Sf8#
- 1...Rc4
- 2.Qxc4#
- 1...c4!
- 1...Kd3
- 1.Qe6?
- threat
- 2.Qe4#
- 1...Kd3
- 2.Qe4#
- 1...Re1!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 1...Kxd5
- 2.Sb6#
- 1...Re1!
- threat
- 1.Sde5?
- Keys
- 1.Qe2!
- threat
- 2.Qe4#
- 1...Kxd5
- 2.Sb8#
- 1...Re1
- 2.Qc4#
- 1...Be3
- 2.Qxe3#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- K(c);P-FLIGHT,P_SPINB(e),XB(C)::R(H)+S(F),DCHECK
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD,P_PINR(D)::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- P(b);::S(F)
- R(a);::S(F)
- R(a);N_GUARD::QAR1(E),XR(a)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- P(f);::S(F),XP(f)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD::QAR1(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- Refutation
- P(d);
- Try
- B(C);
- Threat
- R(H)+S(F)
- Vars
- B(e);OGATE,XR(H)::R1(D)
- B(e);OGATE::R1(D)
- Refutation
- P(d);
- Try
- B(C);
- Threat
- R(H)+S(F)
- Vars
- B(e);OGATE,XR(H)::R1(D)
- B(e);OGATE::R1(D)
- Refutation
- P(d);
- Try
- B(C);
- Threat
- R(H)+S(F)
- Vars
- B(e);OGATE,XR(H)::R1(D)
- B(e);OGATE::R1(D)
- Refutation
- P(d);
- Try
- Q(E);CHECK
- Vars
- K(c);OGATE,P-FLIGHT::QAB1(E)
- K(c);N_GUARD,P-FLIGHT,P_SPINB(e),S_CUTP(d),S_CUTR(a),XB(C)::R(H)+S(F)
- R(a);N_GUARD,P_SPINR(a)::QAR1(E),XR(a)
- Refutation
- P(d);P_SPINP(d)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(c);P-FLIGHT::QAB1(E)
- Refutation
- R(a);
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(c);P-FLIGHT,P_SPINB(e),XB(C)::R(H)+S(F),DCHECK
- Refutation
- R(a);
- Try
- Actual
- Q(E);
- Threat
- QAR1(E)
- Vars
- K(c);P-FLIGHT,P_SPINB(e),XB(C)::R(H)+S(F)
- R(a);N_GUARD::QAR1(E)
- B(e);N_GUARD::QAB1(E),XB(e)
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