MESON Chess Problem Database
Problem Display
PID: 73355 (5Q2/2K5/1p6/BPpb4/4p3/kB2R3/7R/r7 w - - 0 1)
Kallaway, AF
Chess Amateur (The), 1910
#2
7 + 6
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 1...Rd1
- 2.Ra2#
- 1...Re1
- 2.Ra2#
- 1...Rf1
- 2.Ra2#
- 1...Rg1
- 2.Ra2#
- 1...Rh1
- 2.Ra2#
- 1...Ra2
- 2.Rxa2#
- 1...Bc6
- 2.Bd1#
- 1...Bb7
- 2.Bd1#
- 1...Ba8
- 2.Bd1#
- 1...bxa5
- 2.Qxc5#
- 1...Rb1
- Tries
- 1.Kxb6?
- threat
- 2.Qxc5#
- 1...Rc1
- 2.Ra2#
- 1...Bxb3!
- threat
- 1.Be1?
- 1...Bxb3
- 2.Qa8#
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 1...Rd1
- 2.Ra2#
- 1...Ra2
- 2.Rxa2#
- 1...Bc4
- 2.Qa8#
- 1...Bc6
- 2.Bd1#
- 1...Be6
- 2.Qa8#
- 1...Bb7
- 2.Bd1#
- 1...Bf7
- 2.Qa8#
- 1...Ba8
- 2.Bd1#
- 2.Qxa8#
- 1...Bg8
- 2.Qa8#
- 1...Rxe1!
- 1...Bxb3
- 1.Qg7?
- threat
- 2.Qxa1#
- 2.Qb2#
- 1...Bxb3
- 2.Qxa1#
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 2.Qb2#
- 1...Rd1
- 2.Ra2#
- 2.Qb2#
- 1...Re1
- 2.Ra2#
- 2.Qb2#
- 1...Rf1
- 2.Ra2#
- 2.Qb2#
- 1...Rg1
- 2.Ra2#
- 2.Qb2#
- 1...Rh1
- 2.Ra2#
- 2.Qb2#
- 1...Ra2
- 2.Rxa2#
- 1...bxa5!
- threat
- 1.Qf1?
- threat
- 2.Qxa1#
- 1...Rxf1
- 2.Ra2#
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 2.Qxc1#
- 1...Rd1
- 2.Ra2#
- 1...Re1
- 2.Ra2#
- 1...Ra2
- 2.Rxa2#
- 1...bxa5!
- threat
- 1.Qf6?
- threat
- 2.Qxa1#
- 2.Qb2#
- 1...Bxb3
- 2.Qxa1#
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 2.Qb2#
- 1...Rd1
- 2.Ra2#
- 2.Qb2#
- 1...Re1
- 2.Ra2#
- 2.Qb2#
- 1...Rf1
- 2.Ra2#
- 2.Qb2#
- 1...Rg1
- 2.Ra2#
- 2.Qb2#
- 1...Rh1
- 2.Ra2#
- 2.Qb2#
- 1...Ra2
- 2.Rxa2#
- 1...bxa5!
- threat
- 1.Qh8?
- threat
- 2.Qxa1#
- 2.Qb2#
- 1...Bxb3
- 2.Qxa1#
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 2.Qb2#
- 1...Rd1
- 2.Ra2#
- 2.Qb2#
- 1...Re1
- 2.Ra2#
- 2.Qb2#
- 1...Rf1
- 2.Ra2#
- 2.Qb2#
- 1...Rg1
- 2.Ra2#
- 2.Qb2#
- 1...Rh1
- 2.Ra2#
- 2.Qb2#
- 1...Ra2
- 2.Rxa2#
- 1...bxa5!
- threat
- 1.Kxb6?
- Keys
- 1.Qa8!
- 1...Bxb3
- 2.Be1#
- 1...Bxa8
- 2.Bd1#
- 1...bxa5
- 2.Qxa5#
- 1...Bc4
- 2.Be1#
- 1...Rb1
- 2.Ra2#
- 1...Rc1
- 2.Ra2#
- 1...Rd1
- 2.Ra2#
- 1...Re1
- 2.Ra2#
- 1...Rf1
- 2.Ra2#
- 1...Rg1
- 2.Ra2#
- 1...Rh1
- 2.Ra2#
- 1...Ra2
- 2.Rxa2#
- 1...Bc6
- 2.Bd1#
- 1...Be6
- 2.Be1#
- 1...Bb7
- 2.Bd1#
- 1...Bf7
- 2.Be1#
- 1...Bg8
- 2.Be1#
- 1...c4
- 2.Qf8#
- 1...Bxb3
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD,SBLOCK::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- B(e);N_GUARD::R(C)+B(B)
- P(f);N_GUARD,XB(D)::QAB(G),XP(d)
- Tries
- Try
- K(F);S_FLIGHT,XP(f)
- Threat
- QAB(G),XP(d)
- Vars
- R(a);N_GUARD::R1(A)
- Refutation
- B(e);P_SPINB(e),XB(B)
- Try
- B(D);
- Vars
- B(e);N_GUARD,P_SPINB(e),XB(B)::QAR(G)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- B(e);N_GUARD::QAR(G)
- B(e);N_GUARD::R(C)+B(B)
- Refutation
- R(a);XB(D)
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- B(e);P_SPINB(e),XB(B)::QAR2(G),XR(a)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- Refutation
- P(f);XB(D)
- Try
- Q(G);N_PINP(d)
- Threat
- QAR2(G),XR(a)
- Vars
- R(a);N_GUARD,XQ(G)::R1(A)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- Refutation
- P(f);XB(D)
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- B(e);P_SPINB(e),XB(B)::QAR2(G),XR(a)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- Refutation
- P(f);XB(D)
- Try
- Q(G);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- B(e);P_SPINB(e),XB(B)::QAR2(G),XR(a)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- Refutation
- P(f);XB(D)
- Try
- Actual
- Q(G);N_PINP(d)
- Vars
- B(e);N_GUARD,P_SPINB(e),XB(B)::QAR(G)+B(D)
- B(e);N_GUARD,XQ(G)::R(C)+B(B)
- P(f);OGATE,P_SPINP(f),XB(D)::QAR2(G),XP(f)
- B(e);N_GUARD::QAR(G)+B(D)
- R(a);N_GUARD::R1(A)
- R(a);N_GUARD,SBLOCK::R1(A)
- R(a);N_GUARD::R1(A),XR(a)
- B(e);N_GUARD::R(C)+B(B)
- P(d);OGATEB::QAB(G)
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