MESON Chess Problem Database

Problem Display
PID: 17699 (8/B1p1Q3/8/K1R1br2/3P3r/3k4/R3N3/3N4 w - - 0 1)

Ellerman, Arnoldo

1st Prize, Szachy, 1948

8/B1p1Q3/8/K1R1br2/3P3r/3k4/R3N3/3N4

#2

8 + 5

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rc3#
    • 1...Bh2
      • 2.Qe3#
    • 1...Bg3
      • 2.Qe3#
    • 1...Bxd4
      • 2.Sc1#
    • 1...Bf4
      • 2.Sf2#
    • 1...Bd6
      • 2.Qe3#
    • 1...Bf6
      • 2.Qe3#
    • 1...Bg7
      • 2.Qe3#
    • 1...Bh8
      • 2.Qe3#
  • Tries
    • 1.Sc1+?
      • 1...Kxd4
        • 2.Ra4#
      • 1...Ke4!
    • 1.Qxe5?
      • threat
        • 2.Sc1#
        • 2.Rc3#
        • 2.Qe3#
      • 1...Rh3
        • 2.Sc1#
        • 2.Rc3#
        • 2.Qxf5#
      • 1...Re4
        • 2.Sc1#
        • 2.Rc3#
      • 1...Rf3
        • 2.Sc1#
        • 2.Rc3#
      • 1...Rxe5!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Rc3#
      • 1...Kxd4
        • 2.Rd2#
      • 1...Bxg3
        • 2.Qe3#
      • 1...Bxd4
        • 2.Qe2#
      • 1...Bf4
        • 2.Qe4#
      • 1...Bd6
        • 2.Qe3#
      • 1...Bf6
        • 2.Qe3#
      • 1...Bg7
        • 2.Qe3#
      • 1...Bh8
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(b);SBLOCK::R1(F)
    • B(c);OGATE,P_PINR(F)::QAR1(H)
    • B(c);P_PINR(F),SBLOCK,XP(D)::S(C)
    • B(c);P_PINR(F),S_CUTR(d)::S(A)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(D)::R(B)
      • Refutation
        • K(a);P_SPINB(c),S_FLIGHT
    • Try
      • Q(H);XB(c)
      • Threat
        • DUALS(3)
      • Refutation
        • R(d);P_PINR(F),XQ(H)
  • Actual
    • S(C);
    • Threat
      • R1(F)
    • Vars
      • K(a);P-FLIGHT,XP(D)::R(B)
      • B(c);OGATE,P_PINR(F),XS(C)::QAR1(H)
      • B(c);OGATE,P_PINR(F),SBLOCK,XP(D)::QAB1(H)
      • B(c);OGATE,P_PINR(F)::QAB1(H)
      • B(c);OGATE,P_PINR(F)::QAR1(H)
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