MESON Chess Problem Database

Problem Display
PID: 60833 (5R1n/5bp1/3p2q1/3Q4/2K1p3/p2Ppk1N/P1n1N1Rp/7B w - - 0 1)

Guidelli, Giorgio

Good Companions (November), 1914

5R1n/5bp1/3p2q1/3Q4/2K1p3/p2Ppk1N/P1n1N1Rp/7B

#2

9 + 11

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Qh7
      • 2.Sg5#
    • 1...Qg4
      • 2.Rf2#
    • 1...Qg5
      • 2.Sxg5#
    • 1...Qe6
      • 2.Sg5#
    • 1...Sa1
      • 2.Sd4#
    • 1...Se1
      • 2.Sd4#
    • 1...Sb4
      • 2.Sd4#
    • 1...Sd4
      • 2.Sxd4#
  • Tries
    • 1.Kc3?
      • 1...Qxg2
        • 2.Qh5#
      • 1...Qg3
        • 2.Qxe4#
      • 1...Qf5
        • 2.Qxf5#
      • 1...Qh5
        • 2.Qxe4#
        • 2.Qxh5#
      • 1...Qh7
        • 2.Sg5#
      • 1...Qg4
        • 2.Rf2#
      • 1...Qg5
        • 2.Sxg5#
        • 2.Qxe4#
      • 1...Qe6
        • 2.Sg5#
      • 1...Qh6
        • 2.Qxe4#
      • 1...Sa1
        • 2.Sd4#
      • 1...Se1
        • 2.Sd4#
      • 1...Sb4
        • 2.Sd4#
      • 1...Sd4
        • 2.Sxd4#
      • 1...Qf6+!
    • 1.Rxf7+?
      • 1...Qf5
        • 2.Sg5#
        • 2.Rxf5#
        • 2.Qxe4#
        • 2.Qxf5#
      • 1...Qxf7
        • 2.Sg5#
      • 1...Qf6
        • 2.Sg5#
        • 2.Qxe4#
        • 2.Qh5#
      • 1...Sxf7!
  • Keys
    • 1.Kb5!
      • 1...Sd4+
        • 2.Sxd4#
      • 1...Qxg2
        • 2.Qh5#
      • 1...Qg3
        • 2.Qxe4#
      • 1...Qf5
        • 2.Qxf5#
      • 1...Qh5
        • 2.Qxh5#
      • 1...Qh7
        • 2.Sg5#
      • 1...Qg4
        • 2.Rf2#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Qe6
        • 2.Sg5#
      • 1...Qf6
        • 2.Qxe4#
      • 1...Qh6
        • 2.Qxe4#
      • 1...Sa1
        • 2.Sd4#
      • 1...Se1
        • 2.Sd4#
      • 1...Sb4
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(h);N_GUARD::S(F)
    • Q(h);SBLOCK::B(A)+R(D),DCHECK
    • Q(h);N_GUARD::S(F),XQ(h)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
  • Tries
    • Try
      • K(G);N_SPINQ(H),P-FLIGHT
      • Vars
        • Q(h);N_GUARD,P_SPINQ(h),XR(D)::QAB(H)
        • Q(h);N_GUARD::QAB1(H),XP(f)
        • Q(h);N_GUARD,N_SPINB(i)::QAR2(H),XQ(h)
        • Q(h);N_GUARD::S(F)
        • Q(h);SBLOCK::B(A)+R(D),DCHECK
        • S(a);N_GUARD::S(C)
        • S(a);N_GUARD::S(C),XS(a)
      • Refutation
        • Q(h);CHECK,N_SPINB(i)
    • Try
      • R(I);CHECK,N_SPINQ(H),XB(i)
      • Vars
        • Q(h);P_PINQ(H),XR(I)::S(F)
      • Refutation
        • S(k);XR(I)
  • Actual
    • K(G);N_SPINQ(H),S_FLIGHT
    • Vars
      • S(a);CHECK,N_GUARD::S(C),XS(a)
      • Q(h);N_GUARD,P_SPINQ(h),XR(D)::QAB(H)
      • Q(h);N_GUARD::QAB1(H),XP(f)
      • Q(h);N_GUARD,N_SPINB(i),P_PINQ(H)::QAR2(H),XQ(h)
      • Q(h);N_GUARD,P_PINQ(H)::QAB(H),XQ(h)
      • Q(h);N_GUARD::S(F)
      • Q(h);SBLOCK::B(A)+R(D),DCHECK
      • Q(h);N_GUARD,P_PINQ(H)::S(F),XQ(h)
      • Q(h);N_GUARD,N_SPINB(i)::QAB1(H),XP(f)
      • S(a);N_GUARD::S(C)
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