MESON Chess Problem Database

Problem Display
PID: 232836 (2KB4/1P1p4/2Rp4/1bN1kp2/3p3R/Q4B2/2r5/8 w - - 0 1)

Ellerman, Arnoldo

Il Due Mosse, 1953

2KB4/1P1p4/2Rp4/1bN1kp2/3p3R/Q4B2/2r5/8

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Rh5#
    • 1...dxc5
      • 2.Bf6#
    • 1...d5
      • 2.Sxd7#
      • 2.Bf6#
  • Tries
    • 1.Sd3+?
      • 1...Bxd3
        • 2.Qxd6#
      • 1...Ke6!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Rd5#
      • 1...Rxc5+
        • 2.Qxc5#
      • 1...Kxd6
        • 2.b8Q#
        • 2.b8B#
      • 1...Bc4
        • 2.Sxd7#
      • 1...Bc6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(e);OGATEB,SBLOCK::R(C)
    • P(f);XS(D)::B(H)
  • Tries
    • Try
      • S(D);CHECK,P_SPINR(E)
      • Vars
        • B(c);XS(D)::QAB1(A),XP(f)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(f)
  • Actual
    • R(E);P_SPINS(D),XP(f)
    • Threat
      • R1(E)
    • Vars
      • R(a);CHECK,OGATE,XS(D)::QAR2(A),XR(a)
      • K(d);S_FLIGHT,XR(E)::P=Q
      • B(c);N_PINS(D)::S(D),XP(g)
      • B(c);N_PINS(D)::S(D)
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