MESON Chess Problem Database
Problem Display
PID: 12000 (8/3K2Q1/8/3p4/3r4/1R6/1R6/k2B4 w - - 0 1)
Miller, Andrew C
The Problemist, 1973
#2
5 + 3
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Ra3#
- 1...Rd2
- 2.Ra3#
- 1...Rb4
- 2.Ra3#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 1...Rxd1
- Tries
- 1.Kd6?
- 1...Rxd1
- 2.Ra3#
- 2.Qa7#
- 1...Rd2
- 2.Ra3#
- 2.Qa7#
- 1...Rd3
- 2.Qa7#
- 1...Rb4
- 2.Ra3#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 1...Ra4!
- 1...Rxd1
- 1.Kd8?
- 1...Rxd1
- 2.Ra3#
- 2.Qa7#
- 1...Rd2
- 2.Ra3#
- 2.Qa7#
- 1...Rd3
- 2.Qa7#
- 1...Rb4
- 2.Ra3#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 1...Ra4!
- 1...Rxd1
- 1.Bc2?
- 1...Ra4
- 2.Qg1#
- 1...Rd1
- 2.Ra3#
- 1...Rd2
- 2.Ra3#
- 1...Rb4
- 2.Ra3#
- 2.Qg1#
- 1...Rc4
- 2.Ra3#
- 2.Qg1#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 2.Qg1#
- 1...Rd3!
- 1...Ra4
- 1.Be2?
- 1...Ra4
- 2.Qg1#
- 1...Rd1
- 2.Ra3#
- 1...Rd2
- 2.Ra3#
- 1...Rb4
- 2.Ra3#
- 2.Qg1#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 2.Qg1#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 2.Qg1#
- 1...Rd3!
- 1...Ra4
- 1.Bf3?
- 1...Ra4
- 2.Qg1#
- 1...Rd1
- 2.Ra3#
- 1...Rd2
- 2.Ra3#
- 1...Rb4
- 2.Ra3#
- 2.Qg1#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 2.Qg1#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 2.Qg1#
- 1...Rd3!
- 1...Ra4
- 1.Bh5?
- 1...Ra4
- 2.Qg1#
- 1...Rd1
- 2.Ra3#
- 1...Rd2
- 2.Ra3#
- 1...Rb4
- 2.Ra3#
- 2.Qg1#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 2.Qg1#
- 1...Rd3!
- 1...Ra4
- 1.Rc3?
- 1...Rxd1
- 2.Ra3#
- 1...Ra4
- 2.Rc1#
- 1...Rd2
- 2.Rc1#
- 2.Ra3#
- 1...Rd3
- 2.Rc1#
- 1...Rb4
- 2.Rc1#
- 2.Ra3#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Rc1#
- 2.Ra3#
- 1...Rf4
- 2.Rc1#
- 2.Ra3#
- 1...Rg4
- 2.Rc1#
- 2.Ra3#
- 1...Rh4
- 2.Rc1#
- 2.Ra3#
- 1...Kxb2!
- 1...Rxd1
- 1.Qf6?
- 1...Rxd1
- 2.Ra3#
- 2.Qa6#
- 1...Rd2
- 2.Ra3#
- 2.Qa6#
- 1...Rd3
- 2.Qa6#
- 1...Rb4
- 2.Ra3#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 1...Ra4!
- 1...Rxd1
- 1.Qh8?
- 1...Rxd1
- 2.Ra3#
- 2.Qa8#
- 1...Rd2
- 2.Ra3#
- 2.Qa8#
- 1...Rd3
- 2.Qa8#
- 1...Rb4
- 2.Ra3#
- 1...Rc4
- 2.Ra3#
- 1...Re4
- 2.Ra3#
- 1...Rf4
- 2.Ra3#
- 1...Rg4
- 2.Ra3#
- 1...Rh4
- 2.Ra3#
- 1...Ra4!
- 1...Rxd1
- 1.Qg2?
- threat
- 2.Rb1#
- 2.Ra2#
- 2.Ra3#
- 1...Rxd1
- 2.Ra2#
- 2.Ra3#
- 1...Ra4
- 2.Rb1#
- 1...Rd3
- 2.Rb1#
- 2.Ra2#
- 1...Rd2!
- threat
- 1.Qg6?
- threat
- 2.Qb1#
- 1...Rxd1
- 2.Qa6#
- 1...Rd3
- 2.Qa6#
- 1...Re4!
- threat
- 1.Kd6?
- Keys
- 1.Qg1!
- 1...Rxd1
- 2.Qa7#
- 2.Qxd1#
- 1...Ra4
- 2.Bc2#
- 2.Be2#
- 2.Bf3#
- 2.Bg4#
- 2.Bh5#
- 1...Rd2
- 2.Qa7#
- 1...Rd3
- 2.Qa7#
- 1...Rb4
- 2.Bc2#
- 2.Be2#
- 2.Bf3#
- 2.Bg4#
- 2.Bh5#
- 1...Rc4
- 2.Bc2#
- 1...Re4
- 2.Be2#
- 1...Rf4
- 2.Bf3#
- 1...Rg4
- 2.Bxg4#
- 1...Rh4
- 2.Bc2#
- 2.Be2#
- 2.Bf3#
- 2.Bg4#
- 2.Bh5#
- 1...Rxd1
- 1.Qg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- R(b);XB(A)::R(C)
- R(b);::R(C)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- K(D);P-FLIGHT
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- B(A);
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- B(A);
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- B(A);
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- B(A);
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- R(C);
- Vars
- R(b);XB(A)::R(C)
- R(b);::R(C)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- Q(E);
- Vars
- R(b);N_GUARD::QAR(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- Q(E);
- Vars
- R(b);N_GUARD::QAB(E)
- R(b);::R(C)
- Refutation
- R(b);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(b);::R1(B)
- Refutation
- R(b);
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- R(b);N_GUARD,XB(A)::QAR(E)
- R(b);N_GUARD::QAR(E)
- Refutation
- R(b);
- Try
- Actual
- Q(E);
- Vars
- R(b);OGATE::QAR(E)
- R(b);N_GUARD::QAR(E)+B(A)
- R(b);N_GUARD::QAR(E)+B(A),XR(b)
Developed and maintained by Brian Stephenson.
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