MESON Chess Problem Database

Problem Display
PID: 159785 (2b2R2/nn1r1p2/3k4/1pR2P2/1N3r1B/5pN1/5Q2/3K4 w - - 0 1)

Andrew, Frederick William

Leisure Hour, 0000

2b2R2/nn1r1p2/3k4/1pR2P2/1N3r1B/5pN1/5Q2/3K4

#2

8 + 9

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4+
      • 2.Qxd4#
    • 1...Re4
      • 2.Sxe4#
    • 1...Rc7
      • 2.Rd5#
  • Tries
    • 1.Qd2+?
      • 1...Rd4
        • 2.Se4#
        • 2.Qxd4#
      • 1...Kxc5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qe5#
      • 1...Rd4+
        • 2.Qxd4#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Sxc5
        • 2.Qxf4#
      • 1...Rc7
        • 2.Rd5#
      • 1...Re7
        • 2.Qxe7#
      • 1...Rd8
        • 2.Qe7#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Re4
        • 2.Sxe4#
      • 1...f6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,N_GUARD::QAR2(B),XR(b)
    • R(b);N_GUARD::S(C),XR(b)
    • R(g);SBLOCK::R1(F)
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(d);P_PINQ(B),S_FLIGHT,XR(F)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • R(b);CHECK,N_GUARD::QAR2(B),XR(b)
      • R(b);XP(G)::S(C),XR(b)
      • S(f);SBLOCK,XR(F)::QAB(B),XR(b)
      • R(g);SBLOCK::R1(F)
      • R(g);N_GUARD::QAB1(B),XR(g)
      • R(g);N_GUARD::QAB1(B)
      • S(e);N_GUARD::R1(F),XS(e)
      • R(b);N_GUARD::S(C),XR(b)
      • P(h);OGATE::R(H),XP(h)
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