MESON Chess Problem Database

Problem Display
PID: 62952 (8/3n2Q1/2R2qN1/p4B2/1P1kP2R/1P4b1/1nK5/2B5 w - - 0 1)

Aspa, Rosario

British Chess Magazine, 1888

8/3n2Q1/2R2qN1/p4B2/1P1kP2R/1P4b1/1nK5/2B5

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Rd6#
    • 1...Be1
      • 2.Rd6#
    • 1...Bf2
      • 2.Rd6#
    • 1...Bxh4
      • 2.Rd6#
    • 1...Bd6
      • 2.Rxd6#
    • 1...Sd1
      • 2.Rc4#
    • 1...Sd3
      • 2.Rc4#
    • 1...Sa4
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
    • 1...Se5
      • 2.Qa7#
    • 1...Sb8
      • 2.Qa7#
    • 1...Sf8
      • 2.Qa7#
  • Tries
    • 1.Rxf6?
      • threat
        • 2.Rd6#
      • 1...Sxf6
        • 2.Qa7#
      • 1...Bd6
        • 2.Rxd6#
      • 1...axb4!
    • 1.Qxf6+?
      • 1...Be5
        • 2.Rd6#
      • 1...Se5
        • 2.Rd6#
        • 2.Qd6#
      • 1...Sxf6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sf3#
      • 1...Qxc6+
        • 2.Sxc6#
      • 1...Kxe5
        • 2.Bxb2#
      • 1...Qxe5
        • 2.Rd6#
      • 1...Bxe5
        • 2.Qg1#
      • 1...Sxe5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(e);S_CUTB(b)::R(H)
    • B(b);N_GUARD::R(H)
    • B(b);N_GUARD,XR(F)::R(H)
    • B(b);N_GUARD::R(H),XB(b)
    • S(a);N_GUARD::R1(H)
    • S(a);N_GUARD::R1(H),XS(a)
    • S(f);N_SPINQ(e),OGATE::QAB(J)
    • S(f);OGATE::QAB(J)
  • Tries
    • Try
      • R(H);XQ(e)
      • Threat
        • QAB(J)+R(H),DCHECK
      • Vars
        • S(f);OGATE,P_SPINS(f),XR(H)::QAB(J)
        • B(b);::QAB(J)+R(H),DCHECK,XB(b)
      • Refutation
        • P(d);XP(D)
    • Try
      • Q(J);CHECK,XQ(e)
      • Vars
        • B(b);P_SPINB(b)::R(H)
      • Refutation
        • S(f);XQ(J)
  • Actual
    • S(I);N_PINQ(e)
    • Threat
      • S(I)
    • Vars
      • Q(e);CHECK,XR(H)::QAB(J)+S(I),DCHECK,XQ(e)
      • K(c);P_SPINQ(e),S_FLIGHT,XS(I)::B(A),XS(a)
      • Q(e);N_GUARD,P_SPINQ(e),XS(I)::R(H)
      • B(b);OGATE,SBLOCK,XS(I)::QAB(J)
      • S(f);OGATE,SBLOCK,XS(I)::QAB(J)
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