MESON Chess Problem Database

Problem Display
PID: 61623 (5B2/2n1N2K/q2b1P2/pbP4R/r2k4/2RnNP2/2PPB2p/6Q1 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1943

5B2/2n1N2K/q2b1P2/pbP4R/r2k4/2RnNP2/2PPB2p/6Q1

#2

13 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rxd3#
    • 1...Be5
      • 2.S3f5#
      • 2.S7f5#
    • 1...Se5
      • 2.S3f5#
      • 2.S7f5#
    • 1...Sd5
      • 2.Rxd5#
    • 1...Se6
      • 2.Rd5#
    • 1...Sa8
      • 2.Rd5#
    • 1...Se8
      • 2.Rd5#
  • Tries
    • 1.Ra3?
      • threat
        • 2.c3#
      • 1...Be5
        • 2.S7f5#
      • 1...Se5
        • 2.S3f5#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Rc4
        • 2.Rxd3#
      • 1...Rxa3!
    • 1.Rc4+?
      • 1...Bxc4
        • 2.c3#
      • 1...Rxc4!
  • Keys
    • 1.Rb3!
      • threat
        • 2.c3#
      • 1...Be5
        • 2.S7f5#
      • 1...Se5
        • 2.S3f5#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Rc4
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(c);S_CUTB(f)::R1(E),XS(b)
    • S(i);N_GUARD::R1(I),XS(i)
    • S(i);N_GUARD::R1(I)
  • Tries
    • Try
      • R(E);
      • Threat
        • P(B)
      • Vars
        • B(h);SBLOCK::S(K)
        • S(b);SBLOCK::QAB(A)+S(F),DCHECK
        • S(i);N_GUARD::R1(I),XS(i)
        • R(c);S_CUTB(f)::R1(E),XS(b)
      • Refutation
        • R(c);XR(E)
    • Try
      • R(E);CHECK
      • Vars
        • B(f);XR(E)::P(B)
      • Refutation
        • R(c);XR(E)
  • Actual
    • R(E);
    • Threat
      • P(B)
    • Vars
      • B(h);SBLOCK::S(K)
      • S(b);SBLOCK::QAB(A)+S(F),DCHECK
      • S(i);N_GUARD::R1(I),XS(i)
      • R(c);S_CUTB(f)::R1(E),XS(b)
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