MESON Chess Problem Database
Problem Display
PID: 144439 (8/8/5p2/1n3p1B/3n2rp/1Rp2k1P/K2Q3P/2B1R3 w - - 0 1)
Lewis, Robert Tony
British Chess Magazine, 1994
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sxb3
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Sc2
- Tries
- 1.Kb1?
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sc2
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Sa3+!
- 1...Sxb3
- 1.Rg1?
- threat
- 2.Qe3#
- 2.Qg2#
- 1...Se2
- 2.Qe3#
- 1...Sc2
- 2.Qg2#
- 1...f4
- 2.Qg2#
- 1...Ke4!
- threat
- 1.Re4?
- threat
- 2.Rf4#
- 1...fxe4
- 2.Bxg4#
- 1...Se2
- 2.Qxe2#
- 1...Se6
- 2.Qe2#
- 1...f4
- 2.Rxf4#
- 1...Kxe4!
- threat
- 1.Re5?
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sc2
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...fxe5!
- 1...Sxb3
- 1.Re6?
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sc2
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Sxe6!
- 1...Sxb3
- 1.Re7?
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sc2
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Se6!
- 1...Sxb3
- 1.Re8?
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sc2
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Se6!
- 1...Sxb3
- 1.Ra3?
- 1...Se2
- 2.Qxe2#
- 1...Sc2
- 2.Qe2#
- 1...Sb3
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Sxa3!
- 1...Se2
- 1.Qb2?
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Sc6
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bxg4#
- 1...Sc2!
- 1...Sxb3
- 1.Qc2?
- threat
- 2.Rf1#
- 1...Se2
- 2.Qxe2#
- 1...Sxc2!
- threat
- 1.Qd3+?
- 1...Kf2
- 2.Qf1#
- 1...Kg2!
- 1...Kf2
- 1.hxg4?
- threat
- 2.gxf5#
- 2.g5#
- 1...Se2
- 2.Qxe2#
- 1...f4
- 2.g5#
- 1...fxg4!
- threat
- 1.Kb1?
- Keys
- 1.Bf7!
- 1...Sxb3
- 2.Qe2#
- 1...Se2
- 2.Qxe2#
- 1...Rg1
- 2.Bd5#
- 1...Rg2
- 2.Bd5#
- 1...Rg3
- 2.Bd5#
- 1...Re4
- 2.Rf1#
- 1...Rf4
- 2.Re3#
- 1...Rg5
- 2.Bd5#
- 1...Rg6
- 2.Bd5#
- 1...Rg7
- 2.Bd5#
- 1...Rg8
- 2.Bd5#
- 1...Sc2
- 2.Qe2#
- 1...Sc6
- 2.Qe2#
- 1...Se6
- 2.Qe2#
- 1...Sa3
- 2.Rxc3#
- 1...Sd6
- 2.Rxc3#
- 1...Sa7
- 2.Rxc3#
- 1...Sc7
- 2.Rxc3#
- 1...f4
- 2.Bd5#
- 1...Sxb3
- 1.Bf7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- S(f);CHECK
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- S(c);::QAR1(D)
- S(c);::QAB1(D)
- P(g);::QAB1(D)
- Refutation
- K(b);N_SPINP(a),N_SPINR(d),S_FLIGHT
- Try
- R(B);
- Threat
- R1(B)
- Vars
- P(g);N_GUARD,SBLOCK,XR(B)::B(H),XR(d)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- P(g);::R1(B),XP(g)
- Refutation
- K(b);N_SPINP(a),N_SPINR(d),S_FLIGHT,XR(B)
- Try
- R(B);
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- P(h);XR(B)
- Try
- R(B);
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- S(c);XR(B)
- Try
- R(B);
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- S(c);
- Try
- R(B);
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- S(c);
- Try
- R(F);
- Vars
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(c);N_GUARD,N_SPINP(a)::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- S(f);N_SPINP(a),XR(F)
- Try
- Q(D);
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);N_GUARD::B(H),XR(d)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- R(B)
- Vars
- S(c);N_GUARD::QAB1(D),XS(c)
- Refutation
- S(c);XQ(D)
- Try
- Q(D);CHECK,N_PINP(a)
- Vars
- K(b);N_SPINR(d),P-FLIGHT::QAR1(D)
- Refutation
- K(b);N_SPINR(d),S_FLIGHT
- Try
- P(G);XR(d)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAB1(D),XS(c)
- P(g);::B(H)+P(G)
- Refutation
- P(g);XP(G)
- Try
- Actual
- B(H);N_PINR(d)
- Vars
- S(c);N_GUARD,N_SPINP(a),XR(F)::QAB1(D)
- S(c);N_GUARD::QAB1(D),XS(c)
- R(d);N_GUARD::B(H)
- R(d);N_GUARD,P_PINQ(D)::B(H)
- R(d);SBLOCK::R(B)
- R(d);SBLOCK::R1(B)
- S(c);N_GUARD::QAB1(D)
- S(f);N_GUARD::R(F),XP(a)
- P(g);S_CUTR(d)::B(H)
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