MESON Chess Problem Database
Problem Display
PID: 210402 (3R1R2/5N2/1N5p/4P3/2PpknB1/8/3Pr3/1KBQ2b1 w - - 0 1)
Cheylan, Yves
The Problemist, 1985
#2
11 + 6
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qc2#
- 1...Re1
- 2.Qf3#
- 1...Rxd2
- 2.Qf3#
- 1...Rg2
- 2.Qf3#
- 1...Rh2
- 2.Qf3#
- 1...Sg2
- 2.d3#
- 1...Sh3
- 2.d3#
- 1...Sd5
- 2.d3#
- 1...Sh5
- 2.d3#
- 1...Se6
- 2.d3#
- 1...Sg6
- 2.d3#
- 1...Kd3
- Tries
- 1.Sa4?
- threat
- 2.Sc5#
- 1...Kd3
- 2.Qc2#
- 1...Rxd2
- 2.Qf3#
- 1...Sg2
- 2.d3#
- 1...Sh3
- 2.d3#
- 1...Sd5
- 2.d3#
- 1...Sh5
- 2.d3#
- 1...Se6
- 2.d3#
- 1...Sg6
- 2.d3#
- 1...d3
- 2.Sc3#
- 1...Sd3!
- threat
- 1.Sg5+?
- 1...Kd3
- 2.Qc2#
- 2.Qb3#
- 1...Kxe5
- 2.Rf5#
- 1...hxg5!
- 1...Kd3
- 1.Sd6+?
- 1...Kd3
- 2.Qc2#
- 2.Qb3#
- 1...Kxe5!
- 1...Kd3
- 1.Sa4?
- Keys
- 1.Sd7!
- threat
- 2.Sc5#
- 1...Kd3
- 2.Qc2#
- 1...Rxd2
- 2.Qf3#
- 1...Sg2
- 2.d3#
- 1...Sh3
- 2.d3#
- 1...Sd5
- 2.d3#
- 1...Sh5
- 2.d3#
- 1...Se6
- 2.d3#
- 1...Sg6
- 2.d3#
- 1...Sd3
- 2.Sd6#
- 1...d3
- 2.Sf6#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- K(d);P_SPINP(c),S_FLIGHT::QAB1(C)
- R(b);OGATE::QAB1(C)
- R(b);OGATE,XP(D)::QAB1(C)
- S(e);N_GUARD::P(D)
- Tries
- Try
- S(H);
- Threat
- S(H)
- Vars
- K(d);P_SPINP(c),S_FLIGHT::QAB1(C)
- R(b);OGATE,XP(D)::QAB1(C)
- S(e);N_GUARD::P(D)
- P(c);N_GUARD::S(H)
- Refutation
- S(e);
- Try
- S(I);CHECK
- Vars
- K(d);P-FLIGHT,XP(G)::R1(K)
- Refutation
- P(f);XS(I)
- Try
- S(I);CHECK
- Refutation
- K(d);P-FLIGHT,XP(G)
- Try
- Actual
- S(H);
- Threat
- S(H)
- Vars
- K(d);S_FLIGHT::QAB1(C)
- R(b);OGATE,XP(D)::QAB1(C)
- S(e);N_GUARD::P(D)
- S(e);SBLOCK::S(I)
- P(c);::S(H)
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