MESON Chess Problem Database
Problem Display
PID: 54266 (1rn1Q1K1/p1p5/5B1R/2k2N2/1brp4/2N2pp1/1R2n3/4q3 w - - 0 1)
Maybee, Edward E
Chess Life, 1956
#2
7 + 12
SOLUTION
- SOUND
- Sets
- 1...Kb6
- 2.Qb5#
- 1...Rb5
- 2.Qxb5#
- 1...Ra8
- 2.Qb5#
- 1...Sb6
- 2.Be7#
- 1...Se7+
- 2.Bxe7#
- 1...Kb6
- Tries
- 1.Bxd4+?
- 1...Rxd4
- 2.Rc6#
- 2.Qc6#
- 1...Sxd4!
- 1...Rxd4
- 1.Bh4?
- threat
- 2.Rc6#
- 2.Qc6#
- 2.Qe5#
- 1...Se7+
- 2.Bxe7#
- 1...Qxc3
- 2.Qc6#
- 2.Qe5#
- 1...Rxc3
- 2.Qc6#
- 1...Bxc3
- 2.Qc6#
- 2.Qe5#
- 1...Sxc3
- 2.Qc6#
- 1...dxc3
- 2.Qc6#
- 2.Qe5#
- 1...c6
- 2.Rxc6#
- 2.Qxc6#
- 1...Rb6
- 2.Qe5#
- 1...Sc1
- 2.Rc6#
- 2.Qc6#
- 1...Sg1
- 2.Rc6#
- 2.Qc6#
- 1...Sf4
- 2.Rc6#
- 2.Qc6#
- 1...Sb6
- 2.Be7#
- 2.Rc6#
- 1...Sd6!
- threat
- 1.Bg5?
- threat
- 2.Rc6#
- 2.Qc6#
- 2.Qe5#
- 1...Se7+
- 2.Bxe7#
- 1...Qxc3
- 2.Qc6#
- 2.Qe5#
- 1...Rxc3
- 2.Qc6#
- 1...Bxc3
- 2.Qc6#
- 2.Qe5#
- 1...Sxc3
- 2.Qc6#
- 1...dxc3
- 2.Qc6#
- 2.Qe5#
- 1...c6
- 2.Rxc6#
- 2.Qxc6#
- 1...Rb6
- 2.Qe5#
- 1...Sc1
- 2.Rc6#
- 2.Qc6#
- 1...Sg1
- 2.Rc6#
- 2.Qc6#
- 1...Sf4
- 2.Rc6#
- 2.Qc6#
- 1...Sb6
- 2.Be7#
- 2.Rc6#
- 1...Sd6!
- threat
- 1.Bd8?
- threat
- 2.Rc6#
- 2.Qc6#
- 2.Qe5#
- 1...Se7+
- 2.Bxe7#
- 2.Qxe7#
- 1...Qxc3
- 2.Qc6#
- 2.Qe5#
- 1...Rxc3
- 2.Qc6#
- 1...Bxc3
- 2.Qc6#
- 2.Qe5#
- 1...Sxc3
- 2.Qc6#
- 1...dxc3
- 2.Qc6#
- 2.Qe5#
- 1...Rb6
- 2.Qe5#
- 1...Sc1
- 2.Rc6#
- 2.Qc6#
- 1...Sg1
- 2.Rc6#
- 2.Qc6#
- 1...Sf4
- 2.Rc6#
- 2.Qc6#
- 1...Sb6
- 2.Be7#
- 2.Rc6#
- 2.Qb5#
- 2.Qc6#
- 2.Qe7#
- 2.Qf8#
- 1...c6
- 2.Rxc6#
- 2.Qxc6#
- 2.Qe5#
- 1...Sd6!
- threat
- 1.Qe5+?
- 1...Kb6
- 2.Qb5#
- 1...Kc6!
- 1...Kb6
- 1.Bxd4+?
- Keys
- 1.Se7!
- threat
- 2.Qc6#
- 1...Sxe7+
- 2.Bxe7#
- 1...Kb6
- 2.Qb5#
- 1...Kd6
- 2.Bxd4#
- 1...Rb6
- 2.Se4#
- 1...Sb6
- 2.Se4#
- 1...Sd6
- 2.Sa4#
- 1...c6
- 2.Qxc6#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- K(h);P_SPINB(e),S_FLIGHT::QAR1(F)
- R(k);N_GUARD::QAR1(F),XR(k)
- R(k);N_GUARD::QAR1(F)
- S(l);N_GUARD,P_PINQ(F)::B(D)
- S(l);CHECK,N_GUARD,P_PINQ(F)::B(D),XS(l)
- Tries
- Try
- B(D);CHECK,XP(g)
- Refutation
- S(b);XB(D)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- S(l);CHECK,N_GUARD,P_PINQ(F)::B(D),XS(l)
- R(f);XS(B)::QAR1(F)
- S(b);XS(B)::QAR1(F)
- R(k);::QAR2(F)
- Refutation
- S(l);P_PINQ(F)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- S(l);CHECK,N_GUARD,P_PINQ(F)::B(D),XS(l)
- R(f);XS(B)::QAR1(F)
- S(b);XS(B)::QAR1(F)
- R(k);::QAR2(F)
- Refutation
- S(l);P_PINQ(F)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- R(f);XS(B)::QAR1(F)
- S(b);XS(B)::QAR1(F)
- R(k);::QAR2(F)
- Refutation
- S(l);
- Try
- Q(F);CHECK
- Vars
- K(h);OGATE,P_SPINB(e),S_FLIGHT::QAR1(F)
- Refutation
- K(h);P-FLIGHT
- Try
- Actual
- S(C);
- Threat
- QAR1(F)
- Vars
- S(l);CHECK,OGATE,P_PINQ(F),XS(C)::B(D),XS(l)
- K(h);P_SPINB(e),S_FLIGHT::QAR1(F)
- K(h);S_FLIGHT::R(E)+B(D),XP(g)
- R(k);SBLOCK::S(B)
- S(l);P_PINQ(F),SBLOCK::S(B)
- P(j);::QAR1(F),XP(j)
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