MESON Chess Problem Database

Problem Display
PID: 62848 (7B/1Bn4K/3p4/R1r1P1pN/N2krb1P/1P1bR3/5pq1/3Qn3 w - - 0 1)

Abela de la Torre, Aurelio

The Chess Monthly (Hoffer), 1880

7B/1Bn4K/3p4/R1r1P1pN/N2krb1P/1P1bR3/5pq1/3Qn3

#2

11 + 11

5656 Sammlung Leichterer Schachaufgaben I (Dufresne) 1881
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Rxe4#
    • 1...Qh3
      • 2.Rxe4#
    • 1...Qg1
      • 2.Rxe4#
    • 1...Qh2
      • 2.Rxe4#
    • 1...Qg3
      • 2.Rxe4#
    • 1...Qg4
      • 2.Rxe4#
    • 1...Sc2
      • 2.Rxd3#
      • 2.Qxd3#
    • 1...Sf3
      • 2.Rxd3#
      • 2.Rxe4#
      • 2.Qxd3#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Sf5#
      • 1...Kxe3
        • 2.Sf5#
      • 1...Qxg3
        • 2.Rxe4#
      • 1...Qh3
        • 2.Rxe4#
      • 1...Bxg3!
  • Keys
    • 1.Sg7!
      • threat
        • 2.Sf5#
      • 1...Kxe3
        • 2.Sf5#
      • 1...Kxe5
        • 2.Qa1#
      • 1...Qh3
        • 2.Rxe4#
      • 1...Qg4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_GUARD::R1(C),XR(f)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • K(e);N_SPINB(d),S_FLIGHT,XR(C)::S(H)
        • Q(c);N_GUARD,XS(H)::R1(C),XR(f)
        • Q(c);N_GUARD,P_PINP(E)::R1(C),XR(f)
      • Refutation
        • B(g);XS(H)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(e);N_SPINB(d),S_FLIGHT,XR(C)::S(H)
      • K(e);N_SPINB(d),P_SPINR(f),S_FLIGHT,XP(G)::QAB(A)
      • Q(c);N_GUARD,P_PINP(E)::R1(C),XR(f)
      • Q(c);N_GUARD::R1(C),XR(f)
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