MESON Chess Problem Database

Problem Display
PID: 37585 (2KR3b/2Q5/8/1p1N1B2/3k4/nPN5/r3b3/2r5 w - - 0 1)

Eddy, Edwin John

Comm., BCF 013. Ty., 1933-1934

2KR3b/2Q5/8/1p1N1B2/3k4/nPN5/r3b3/2r5

#2

7 + 7

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qxc3#
    • 1...Ra1
      • 2.Sxe2#
    • 1...Be5
      • 2.Qb6#
      • 2.Qa7#
    • 1...Sc2
      • 2.Sxe2#
    • 1...Sc4
      • 2.Sxb5#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qe3#
      • 1...Rxc3+
        • 2.Sc7#
      • 1...Be5
        • 2.Qa7#
      • 1...Sc2
        • 2.Sxe2#
      • 1...Sc4
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE,P_PINQ(E),XS(B)::QAB1(E),XR(a)
    • R(b);N_GUARD::S(B),XB(c)
    • S(d);S_CUTR(b)::S(B),XB(c)
    • S(d);N_GUARD,S_CUTB(c)::S(B),XP(f)
  • Actual
    • Q(E);P_SPINS(B)
    • Threat
      • QAB1(E)
    • Vars
      • R(a);CHECK,SBLOCK,XS(B)::R(G)+S(C)
      • B(g);SBLOCK::QAB(E)
      • S(d);N_PINS(B)::S(B),XB(c)
      • S(d);N_PINS(B)::S(B),XP(f)
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