MESON Chess Problem Database

Problem Display
PID: 241627 (4K3/1n1p4/bR1b1k1B/3P3P/3q1N2/1n1PR1N1/1Q6/8 w - - 0 1)

Kipping, Cyril Stanley

Magyar Sakkvilag, 1929

4K3/1n1p4/bR1b1k1B/3P3P/3q1N2/1n1PR1N1/1Q6/8

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5+
      • 2.Qxe5#
    • 1...Sa1
      • 2.Qxd4#
    • 1...Sc1
      • 2.Qxd4#
    • 1...Sd2
      • 2.Qxd4#
    • 1...S3a5
      • 2.Qxd4#
    • 1...S3c5
      • 2.Qxd4#
    • 1...S7a5
      • 2.Rxd6#
  • Tries
    • 1.Se6?
      • threat
        • 2.Bg5#
        • 2.Bg7#
      • 1...dxe6
        • 2.Rxe6#
      • 1...Bf4
        • 2.Bg7#
      • 1...Bf8
        • 2.Bg5#
      • 1...Bxg3!
    • 1.Sg6?
      • threat
        • 2.Rf3#
      • 1...Qe5+
        • 2.Qxe5#
      • 1...Sd2
        • 2.Qxd4#
      • 1...Bxd3!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Sg6#
      • 1...Qe5+
        • 2.Se6#
      • 1...Ke5
        • 2.Bg7#
      • 1...Bxd3
        • 2.Sxd3#
      • 1...Sd2
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(b);CHECK,OGATE::QAB1(A),XQ(b)
    • S(a);N_GUARD::QAB(A),XQ(b)
    • S(f);N_GUARD::R(H),XB(d)
  • Tries
    • Try
      • S(E);N_PINB(d)
      • Threat
        • DUALS(2)
      • Vars
        • P(g);OGATE,XS(E)::R1(C),XP(g)
        • B(d);::B(I)
      • Refutation
        • B(d);XS(D)
    • Try
      • S(E);
      • Threat
        • R(C)
      • Vars
        • Q(b);CHECK,OGATE::QAB1(A),XQ(b)
        • S(a);N_GUARD::QAB(A),XQ(b)
      • Refutation
        • B(c);XP(B)
  • Actual
    • R(C);
    • Threat
      • R(C)+S(E)
    • Vars
      • Q(b);CHECK::R(C)+S(E)
      • K(e);N_SPINB(d),S_FLIGHT::B(I)
      • B(c);XP(B)::R(C)+S(E),XB(c)
      • S(a);N_GUARD::QAB(A),XQ(b)
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