MESON Chess Problem Database
Problem Display
PID: 274358 (1q4r1/5N2/1R2Pp2/5kbP/3PrP2/4PQB1/B1N5/5K2 w - - 0 1)
Schmoll, Werner
Troll, 2023
(First published on Wed Jul 19 2023)
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Qxf4
- 2.Sd6#
- 1...Qd6
- 2.Sxd6#
- 1...Qa7
- 2.Sd6#
- 1...Qb7
- 2.Sd6#
- 1...Qa8
- 2.Sd6#
- 1...Qc8
- 2.Sd6#
- 1...Qe8
- 2.Sd6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxf4
- 2.e4#
- 1...Re5
- 2.fxg5#
- 1...Rxe6
- 2.Bxe6#
- 1...Bh4
- 2.Sh6#
- 1...Bh6
- 2.Sxh6#
- 1...Qxf4
- Tries
- 1.Be1?
- threat
- 2.Qh3#
- 1...Qxf4
- 2.Sd6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxf4
- 2.e4#
- 1...Rxe6
- 2.Bxe6#
- 1...Re5
- 2.fxg5#
- 1...Bh4
- 2.Sh6#
- 1...Bh6
- 2.Sxh6#
- 1...Bxf4!
- threat
- 1.Bf2?
- threat
- 2.Qh3#
- 1...Qxf4
- 2.Sd6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxf4
- 2.e4#
- 1...Rxe6
- 2.Bxe6#
- 1...Re5
- 2.fxg5#
- 1...Bh4
- 2.Sh6#
- 1...Bh6
- 2.Sxh6#
- 1...Bxf4!
- threat
- 1.Bh2?
- threat
- 2.Qh3#
- 1...Qxf4
- 2.Sd6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxf4
- 2.e4#
- 1...Rxe6
- 2.Bxe6#
- 1...Re5
- 2.fxg5#
- 1...Bh4
- 2.Sh6#
- 1...Bh6
- 2.Sxh6#
- 1...Bxf4!
- threat
- 1.Rb5+?
- 1...Qe5
- 2.Sd6#
- 1...Re5
- 2.e4#
- 2.fxg5#
- 1...Qxb5+!
- 1...Qe5
- 1.fxg5+?
- 1...Rf4
- 2.e4#
- 1...Qf4!
- 1...Rf4
- 1.Be1?
- Keys
- 1.Bh4!
- threat
- 2.Qh3#
- 1...Qxf4
- 2.Sd6#
- 1...Rxe3
- 2.Sxe3#
- 1...Rxd4
- 2.Sxd4#
- 1...Rxf4
- 2.e4#
- 1...Rxe6
- 2.Bxe6#
- 1...Bxf4
- 2.Sh6#
- 1...Bxh4
- 2.Sh6#
- 1...Re5
- 2.fxg5#
- 1...Bh6
- 2.Sxh6#
- threat
- 1.Bh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(e);N_GUARD,P_PINQ(E),P_SPINQ(e),XP(H)::S(L)
- Q(e);N_GUARD::S(L),XQ(e)
- Q(e);N_GUARD::S(L)
- R(a);XP(D)::S(C),XR(a)
- R(a);XP(G)::S(C),XR(a)
- R(a);OGATE,P_PINQ(E),P_SPINR(a),XP(H)::P(D)
- R(a);N_GUARD,S_CUTQ(e)::QAR(E)+P(H),XB(c)
- R(a);OGATE,XP(K)::B(B),XR(a)
- B(c);N_GUARD::S(L)
- B(c);N_GUARD::S(L),XB(c)
- Tries
- Try
- B(F);
- Threat
- QAB(E)
- Vars
- Q(e);N_GUARD,P_PINQ(E),P_SPINQ(e),XP(H)::S(L)
- R(a);XP(D)::S(C),XR(a)
- R(a);XP(G)::S(C),XR(a)
- R(a);OGATE,P_PINQ(E),P_SPINR(a),XP(H)::P(D)
- R(a);OGATE,XP(K)::B(B),XR(a)
- R(a);N_GUARD,S_CUTQ(e)::QAR(E)+P(H),XB(c)
- B(c);N_GUARD::S(L)
- B(c);N_GUARD::S(L),XB(c)
- Refutation
- B(c);P_SPINB(c),XP(H)
- Try
- B(F);
- Threat
- QAB(E)
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XP(H)::S(L)
- R(a);XP(D)::S(C),XR(a)
- R(a);XP(G)::S(C),XR(a)
- R(a);OGATE,P_SPINR(a),XP(H)::P(D)
- R(a);OGATE,XP(K)::B(B),XR(a)
- R(a);N_GUARD,S_CUTQ(e)::QAR(E)+P(H),XB(c)
- B(c);N_GUARD::S(L)
- B(c);N_GUARD::S(L),XB(c)
- Refutation
- B(c);P_SPINB(c),XP(H)
- Try
- B(F);
- Threat
- QAB(E)
- Vars
- Q(e);N_GUARD,P_PINQ(E),P_SPINQ(e),XP(H)::S(L)
- R(a);XP(D)::S(C),XR(a)
- R(a);XP(G)::S(C),XR(a)
- R(a);OGATE,P_PINQ(E),P_SPINR(a),XP(H)::P(D)
- R(a);OGATE,XP(K)::B(B),XR(a)
- R(a);N_GUARD,S_CUTQ(e)::QAR(E)+P(H),XB(c)
- B(c);N_GUARD::S(L)
- B(c);N_GUARD::S(L),XB(c)
- Refutation
- B(c);P_SPINB(c),XP(H)
- Try
- R(J);CHECK
- Vars
- Q(e);P_SPINQ(e)::S(L)
- Refutation
- Q(e);CHECK,XR(J)
- Try
- P(H);CHECK,XB(c)
- Vars
- R(a);OGATE,P_PINQ(E),P_SPINR(a)::P(D)
- Refutation
- Q(e);P_PINQ(E),P_SPINQ(e)
- Try
- Actual
- B(F);
- Threat
- QAB(E)
- Vars
- Q(e);N_GUARD,P_PINQ(E),P_SPINQ(e),XP(H)::S(L)
- R(a);XP(D)::S(C),XR(a)
- R(a);XP(G)::S(C),XR(a)
- R(a);OGATE,P_PINQ(E),P_SPINR(a),XP(H)::P(D)
- R(a);OGATE,XP(K)::B(B),XR(a)
- B(c);N_GUARD,P_SPINB(c),XP(H)::S(L)
- B(c);N_GUARD,XB(F)::S(L)
- R(a);N_GUARD,S_CUTQ(e)::QAR(E)+P(H),XB(c)
- B(c);N_GUARD::S(L),XB(c)
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