MESON Chess Problem Database

Problem Display
PID: 10008 (N1B4K/5p2/6bR/1Q1pk1p1/n3N2p/b1p3p1/3pR1P1/q3B3 w - - 0 1)

Goldschmeding, Cornelis

2nd Comm., Probleemblad, 1961

N1B4K/5p2/6bR/1Q1pk1p1/n3N2p/b1p3p1/3pR1P1/q3B3

#2

9 + 12

3147 Chess Problems: Introduction to an Art 1963
56 The Problemist 2008

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc3+?
      • 1...Kf4
        • 2.Bxd2#
      • 1...Kd6
        • 2.Qxd5#
      • 1...Kf6
        • 2.Sxd5#
      • 1...Be4
        • 2.Rxe4#
      • 1...Kd4!
    • 1.Sxg3+?
      • 1...Kd4
        • 2.Bf2#
      • 1...Kd6
        • 2.Sf5#
      • 1...Kf6
        • 2.Sh5#
      • 1...Be4
        • 2.Rxe4#
      • 1...Kf4!
    • 1.Sc5+?
      • 1...Kd4
        • 2.Sb3#
      • 1...Kf4
        • 2.Qb8#
      • 1...Kd6
        • 2.Sb7#
      • 1...Kf6
        • 2.Qc6#
      • 1...Be4!
    • 1.Qxd5+?
      • 1...Kf4
        • 2.Qxg5#
      • 1...Kxd5!
  • Keys
    • 1.Sxg5+!
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Sh3#
      • 1...Kd6
        • 2.Sxf7#
      • 1...Kf6
        • 2.Sh7#
      • 1...Be4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK,XP(d)
      • Vars
        • K(i);N_SPINP(h),P_PINS(D),S_FLIGHT::B(A),XP(b)
        • K(i);N_SPINP(h),P_PINS(D),P_SPINB(k),S_FLIGHT::QAR1(E),XP(h)
        • K(i);N_SPINP(h),P_SPINB(k),S_FLIGHT::S(D),XP(h)
        • B(k);N_GUARD,P_SPINB(k)::R1(B),XB(k)
      • Refutation
        • K(i);N_SPINP(h),S_FLIGHT
    • Try
      • S(D);CHECK,XP(e)
      • Vars
        • K(i);N_SPINP(h),S_FLIGHT::B(A)
        • K(i);N_SPINP(h),P_SPINB(k),S_FLIGHT::S(D)
        • B(k);N_GUARD,P_SPINB(k)::R1(B),XB(k)
      • Refutation
        • K(i);N_SPINP(h),S_FLIGHT
    • Try
      • S(D);CHECK,N_PINP(h)
      • Vars
        • K(i);S_FLIGHT::S(D)
        • K(i);S_FLIGHT::QAB(E)
        • K(i);P_SPINB(k),S_FLIGHT::S(D)
        • K(i);P_SPINB(k),S_FLIGHT::QAR(E)
      • Refutation
        • B(k);P_SPINB(k)
    • Try
      • Q(E);CHECK,XP(h)
      • Vars
        • K(i);OGATE,S_FLIGHT::QAB1(E),XP(j)
      • Refutation
        • K(i);P-FLIGHT,XQ(E)
  • Actual
    • S(D);CHECK,XP(j)
    • Vars
      • K(i);N_SPINP(h),S_FLIGHT::S(D)
      • K(i);N_SPINP(h),P_SPINB(k),S_FLIGHT::S(D),XP(l)
      • K(i);N_SPINP(h),P_SPINB(k),S_FLIGHT::S(D)
      • B(k);N_GUARD,P_SPINB(k)::R1(B),XB(k)
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