MESON Chess Problem Database

Problem Display
PID: 202889 (2R4K/1Q3p2/B2B1n1N/2pr2N1/P1pkb1nR/r7/p2PP3/8 w - - 0 1)

Reilly, William Henry

Western Daily Mercury, 1920

(First published on Fri Feb 13 1920)

2R4K/1Q3p2/B2B1n1N/2pr2N1/P1pkb1nR/r7/p2PP3/8

#2

11 + 10

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.e3#
    • 1...Se3
      • 2.Sf3#
    • 1...Se5
      • 2.Sf5#
  • Tries
    • 1.Qb2+?
      • 1...Rc3
        • 2.Qxc3#
      • 1...c3!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qxc4#
      • 1...Rxa4
        • 2.Qc3#
      • 1...Rxd6
        • 2.Qxc5#
      • 1...cxb4
        • 2.Rxc4#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Bd3
        • 2.e3#
      • 1...Se3
        • 2.Sf3#
      • 1...Se5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(e);P_SPINS(f),SBLOCK,S_CUTR(b)::P(B)
    • S(f);P_SPINB(e),S_CUTR(b)::S(E)
    • S(f);P_SPINB(e),S_CUTR(h)::S(H)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAB1(I),XR(b)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • Q(I);P_PINP(c)
    • Threat
      • QAR1(I),XP(c)
    • Vars
      • R(b);N_GUARD,XP(C)::QAB1(I)
      • R(h);N_GUARD,XB(G)::QAB1(I),XP(g)
      • P(g);N_SPINP(c),OGATE,XQ(I)::R1(J),XP(c)
      • R(b);N_GUARD::QAB1(I),XR(b)
      • B(e);P_SPINS(f),SBLOCK,S_CUTR(b)::P(B)
      • S(f);P_SPINB(e),S_CUTR(b)::S(E)
      • S(f);P_SPINB(e),S_CUTR(h)::S(H)
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