MESON Chess Problem Database
Problem Display
PID: 47561 (K7/1n2N2b/Q3B3/1pp1k1P1/4rp2/4r1N1/1R6/B3R3 w - - 0 1)
Ahues, Herbert Siegfried Oskar
4th HM., Themes-64, 1956
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Rd2#
- 1...Re2
- 2.Rbxe2#
- 1...Rb3
- 2.Rxb3#
- 1...Rb4
- 2.Rxb4#
- 1...c4
- 2.Rxb5#
- 1...Kd4
- Tries
- 1.Sg6+?
- 1...Kd4
- 2.Rd2#
- 1...Bxg6!
- 1...Kd4
- 1.Bb3?
- threat
- 2.Qf6#
- 1...Kd4
- 2.Rd2#
- 1...Sd6
- 2.Sc6#
- 1...Ra4!
- threat
- 1.Rbb1+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Ra2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rc2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rd2+?
- 1...Rc3
- 2.Bxc3#
- 2.Rd5#
- 1...Rd4!
- 1...Rc3
- 1.Rbe2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rf2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rg2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rh2+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rb3+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rb4+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Rxb5+?
- 1...Rc3
- 2.Bxc3#
- 1...Rd4!
- 1...Rc3
- 1.Sg6+?
- Keys
- 1.Ba2!
- threat
- 2.Qf6#
- 1...Kd4
- 2.Rd2#
- 1...Ra3
- 2.Rb3#
- 1...Ra4
- 2.Rb4#
- 1...Sd6
- 2.Sc6#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- K(f);S_FLIGHT::B(A)+R(C),DCHECK
- R(a);N_GUARD,S_CUTR(b)::B(A)+R(C),XR(a)
- R(a);N_GUARD,P_SPINR(b)::B(A)+R(C),XR(a)
- R(b);N_GUARD,P_SPINR(a)::B(A)+R(C),XR(b)
- P(e);::B(A)+R(C),DCHECK,XP(d)
- Tries
- Try
- S(H);CHECK
- Vars
- K(f);S_FLIGHT::B(A)+R(C),DCHECK
- Refutation
- B(h);XS(H)
- Try
- B(G);
- Threat
- QAB1(F)
- Vars
- K(f);S_FLIGHT::B(A)+R(C),DCHECK
- S(g);SBLOCK::S(H)
- Refutation
- R(b);P_PINQ(F),P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- R(C);CHECK,P_PINP(e),XP(d)
- Vars
- R(a);N_GUARD,P_SPINR(a),S_CUTR(b)::B(A),XR(a)
- Refutation
- R(b);P_SPINR(a)
- Try
- Actual
- B(G);
- Threat
- QAB1(F)
- Vars
- K(f);S_FLIGHT::B(A)+R(C),DCHECK
- R(a);N_GUARD,P_PINQ(F),P_SPINR(b)::B(A)+R(C)
- R(b);N_GUARD,P_PINQ(F),P_SPINR(a)::B(A)+R(C)
- S(g);SBLOCK::S(H)
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