MESON Chess Problem Database
Problem Display
PID: 178008 (6br/pR1R1n1p/p1k1P2p/r2N3K/7P/1N6/8/7B w - - 0 1)
Morra, Juan Carlos
Busmen's Chess Review, 1964
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sb4#
- 2.Se7#
- 1...Ra2
- 2.Sb4#
- 2.Se7#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra4
- 2.Sb4#
- 2.Se7#
- 1...Rb5
- 2.Rbc7#
- 1...Rc5
- 2.Sd4#
- 1...Rxd5+
- 2.Bxd5#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 1...Sg5
- 2.Sb4#
- 2.Se7#
- 1...Sd6
- 2.Rdc7#
- 1...Ra1
- Tries
- 1.Bg2?
- 1...Rxd5+
- 2.Bxd5#
- 1...Ra1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra2
- 2.Sb4#
- 2.Se7#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra4
- 2.Sb4#
- 2.Se7#
- 1...Rb5
- 2.Rbc7#
- 1...Rc5
- 2.Sd4#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 1...Sg5
- 2.Sb4#
- 2.Se7#
- 1...Sd6
- 2.Rdc7#
- 1...Sd8!
- 1...Rxd5+
- 1.Bf3?
- 1...Rxd5+
- 2.Bxd5#
- 1...Ra1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra2
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra4
- 2.Sb4#
- 2.Se7#
- 1...Rb5
- 2.Rbc7#
- 1...Rc5
- 2.Sd4#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 1...Sg5
- 2.Sb4#
- 2.Se7#
- 1...Sd6
- 2.Rdc7#
- 1...Sd8!
- 1...Rxd5+
- 1.Be4?
- 1...Rxd5+
- 2.Bxd5#
- 1...Ra1
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra2
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra4
- 2.Sb4#
- 2.Se7#
- 1...Rb5
- 2.Rbc7#
- 1...Rc5
- 2.Sd4#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 1...Sg5
- 2.Sb4#
- 2.Se7#
- 1...Sd6
- 2.Rdc7#
- 1...Sd8!
- 1...Rxd5+
- 1.Rb8?
- 1...Rxd5+
- 2.Bxd5#
- 1...Ra1
- 2.Sb4#
- 2.Se7#
- 1...Ra2
- 2.Sb4#
- 2.Se7#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Ra4
- 2.Sb4#
- 2.Se7#
- 1...Rb5
- 2.Rc8#
- 1...Rc5
- 2.Sd4#
- 1...Se5
- 2.Sb4#
- 2.Se7#
- 1...Sg5
- 2.Sb4#
- 2.Se7#
- 1...Sd6
- 2.Rc7#
- 1...Sd8!
- 1...Rxd5+
- 1.exf7?
- 1...Rxd5+
- 2.Bxd5#
- 1...Ra1
- 2.Sb4#
- 2.Se7#
- 1...Ra2
- 2.Sb4#
- 2.Se7#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 2.Se7#
- 1...Ra4
- 2.Sb4#
- 2.Se7#
- 1...Rb5
- 2.Rbc7#
- 1...Rc5
- 2.Sd4#
- 1...Bxf7+!
- 1...Rxd5+
- 1.Bg2?
- Keys
- 1.e7!
- 1...Rxd5+
- 2.Bxd5#
- 1...Sd8
- 2.exd8S#
- 1...Ra1
- 2.Sb4#
- 1...Ra2
- 2.Sb4#
- 1...Ra3
- 2.Sc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sf6#
- 1...Ra4
- 2.Sb4#
- 1...Rb5
- 2.Rbc7#
- 1...Rc5
- 2.Sd4#
- 1...Se5
- 2.Sb4#
- 1...Sg5
- 2.Sb4#
- 1...Sd6
- 2.Rdc7#
- 1...Rxd5+
- 1.e7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(a);SBLOCK::R1(G)
- R(a);SBLOCK::S(B)
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- S(f);SBLOCK::R1(H)
- Tries
- Try
- B(A);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- R(a);SBLOCK::R1(G)
- R(a);SBLOCK::S(B)
- S(f);SBLOCK::R1(H)
- Refutation
- S(f);
- Try
- B(A);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- R(a);SBLOCK::R1(G)
- R(a);SBLOCK::S(B)
- S(f);SBLOCK::R1(H)
- Refutation
- S(f);
- Try
- B(A);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- R(a);SBLOCK::R1(G)
- R(a);SBLOCK::S(B)
- S(f);SBLOCK::R1(H)
- Refutation
- S(f);
- Try
- R(G);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- R(a);SBLOCK::R(G)
- R(a);SBLOCK::S(B)
- S(f);SBLOCK::R1(H)
- Refutation
- S(f);
- Try
- P(F);XS(f)
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- R(a);SBLOCK::R1(G)
- R(a);SBLOCK::S(B)
- Refutation
- B(h);CHECK,XP(F)
- Try
- Actual
- P(F);
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(D)::B(A),XR(a)
- S(f);OGATE::PXS(f)=S
- R(a);N_PINS(D)::B(A)+S(D),DCHECK
- R(a);SBLOCK::R1(G)
- R(a);SBLOCK::S(B)
- S(f);N_PINS(D)::B(A)+S(D),DCHECK
- S(f);SBLOCK::R1(H)
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