MESON Chess Problem Database
Problem Display
PID: 238505 (8/4N2B/3R1P1n/2p1Nb2/2rPkpp1/1Rbp4/5Q2/1K4B1 w - - 0 1)
Doukhan, Gerard
Variantim, 2020
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qe1#
- 1...Be1
- 2.Qxe1#
- 1...Bb2
- 2.Qe1#
- 1...Sf7
- 2.Bxf5#
- 1...Sg8
- 2.Bxf5#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...g3
- 2.Qf3#
- 1...Ba1
- Tries
- 1.Sf3?
- threat
- 2.Sg5#
- 2.Re6#
- 1...Rxd4
- 2.Re6#
- 1...gxf3
- 2.Re6#
- 1...cxd4
- 2.Re6#
- 1...d2
- 2.Qe2#
- 1...Sf7
- 2.Bxf5#
- 1...Bxd4!
- threat
- 1.Sxc4?
- threat
- 2.Re6#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...Sf7
- 2.Bxf5#
- 1...Bxd4!
- threat
- 1.Sxg4?
- threat
- 2.Re6#
- 1...Sxg4
- 2.Bxf5#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...Sf7
- 2.Bxf5#
- 1...Bxd4!
- threat
- 1.S5c6?
- threat
- 2.Re6#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...Sf7
- 2.Bxf5#
- 1...Bxd4!
- threat
- 1.S5g6?
- threat
- 2.Qxf4#
- 1...Bxg6
- 2.Re6#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...Bd2!
- threat
- 1.Sd7?
- threat
- 2.Re6#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...Sf7
- 2.Bxf5#
- 1...Bxd4!
- threat
- 1.Sf7?
- threat
- 2.Sg5#
- 2.Re6#
- 1...Rxd4
- 2.Re6#
- 1...Sxf7
- 2.Bxf5#
- 1...cxd4
- 2.Re6#
- 1...d2
- 2.Qe2#
- 1...f3
- 2.Qe3#
- 1...Bxd4!
- threat
- 1.Sd5?
- threat
- 2.Qxf4#
- 1...f3
- 2.Qe3#
- 1...Bd2!
- threat
- 1.Rxc3?
- threat
- 2.Qe1#
- 1...f3
- 2.Qe3#
- 1...d2
- 2.Qe2#
- 1...Rb4+!
- threat
- 1.Re6?
- threat
- 2.Sf3#
- 2.Sxc4#
- 2.Sxg4#
- 2.S5c6#
- 2.Sd7#
- 2.Sf7#
- 1...Rxd4
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.S5c6#
- 2.Sd7#
- 2.Sf7#
- 1...f3
- 2.Qe3#
- 1...Ra4
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.S5c6#
- 2.Sd7#
- 2.Sf7#
- 1...Rb4
- 2.Sf3#
- 2.Sc4#
- 2.Sxg4#
- 2.S5c6#
- 2.Sd7#
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 2.Bxf5#
- 1...d2
- 2.Qe2#
- 1...g3
- 2.Sf3#
- 2.Sxc4#
- 2.Sg4#
- 2.S5c6#
- 2.Sd7#
- 2.Sf7#
- 2.Qf3#
- 1...Bxd4!
- threat
- 1.Sf3?
- Keys
- 1.Sxd3!
- threat
- 2.Qe2#
- 1...Kxd3
- 2.Qc2#
- 1...Bxd4
- 2.Qxf4#
- 1...Bd2
- 2.Re6#
- 1...f3
- 2.Qe3#
- threat
- 1.Sxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- B(a);N_GUARD::QAR(C)
- B(a);N_GUARD::QAR(C),XB(a)
- S(i);N_GUARD::B(J),XB(h)
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- P(f);N_GUARD::QAB1(C)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::R(G)
- P(f);XS(F)::R(G)
- P(g);XP(E)::R(G)
- P(b);N_GUARD::QAR2(C)
- S(i);N_GUARD::B(J),XB(h)
- Refutation
- B(a);XP(E)
- Try
- S(F);XR(c)
- Threat
- R(G)
- Vars
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- S(i);N_GUARD::B(J),XB(h)
- Refutation
- B(a);XP(E)
- Try
- S(F);XP(f)
- Threat
- R(G)
- Vars
- S(i);N_GUARD,XS(F)::B(J),XB(h)
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- S(i);N_GUARD::B(J),XB(h)
- Refutation
- B(a);XP(E)
- Try
- S(F);
- Threat
- R(G)
- Vars
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- S(i);N_GUARD::B(J),XB(h)
- Refutation
- B(a);XP(E)
- Try
- S(F);N_PINB(h)
- Threat
- QAR1(C),XP(e)
- Vars
- B(h);N_GUARD,P_SPINB(h),XS(F)::R(G)
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- Refutation
- B(a);
- Try
- S(F);
- Threat
- R(G)
- Vars
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- S(i);N_GUARD::B(J),XB(h)
- Refutation
- B(a);XP(E)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::R(G)
- S(i);N_GUARD,XS(F)::B(J),XB(h)
- P(g);XP(E)::R(G)
- P(b);N_GUARD::QAR2(C)
- P(e);N_GUARD::QAR1(C)
- Refutation
- B(a);XP(E)
- Try
- S(I);
- Threat
- QAR1(C),XP(e)
- Vars
- P(e);N_GUARD::QAR1(C)
- Refutation
- B(a);
- Try
- R(D);XB(a)
- Threat
- QAR(C)
- Vars
- P(e);N_GUARD::QAR1(C)
- P(b);N_GUARD::QAR2(C)
- Refutation
- R(c);CHECK
- Try
- R(G);
- Threat
- DUALS(6)
- Vars
- P(e);N_GUARD::QAR1(C)
- P(b);N_GUARD::QAR2(C)
- Refutation
- B(a);XP(E)
- Try
- Actual
- S(F);XP(b)
- Threat
- QAR2(C)
- Vars
- K(d);N_SPINB(h),OGATEB,P_SPINB(a),S_FLIGHT,XS(F)::QAB1(C)
- B(a);XP(E)::QAR1(C),XP(e)
- B(a);::R(G)
- P(e);N_GUARD::QAR1(C)
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