MESON Chess Problem Database

Problem Display
PID: 237780 (8/3N1p2/2BpkP2/2b3K1/Rr2N1P1/4p3/8/8 w - - 0 1)

Goldschmeding, Cornelis

Arbejder-Skak, 1951

8/3N1p2/2BpkP2/2b3K1/Rr2N1P1/4p3/8/8

#2

7 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Rxe4#
  • Tries
    • 1.Kh4?
      • threat
        • 2.Sg5#
      • 1...Rxe4
        • 2.Rxe4#
      • 1...d5!
    • 1.Kh5?
      • threat
        • 2.Sg5#
      • 1...Rxe4
        • 2.Rxe4#
      • 1...d5!
    • 1.Kh6?
      • threat
        • 2.Sg5#
      • 1...Rxe4
        • 2.Rxe4#
      • 1...d5!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Sf8#
      • 1...Rxe4+
        • 2.Rxe4#
      • 1...Rb8
        • 2.Sg5#
      • 1...d5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,XS(B)::R(A),XR(b)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • S(B)
      • Vars
        • R(b);OGATE,P_PINP(C),XS(B)::R(A),XR(b)
      • Refutation
        • P(d);
    • Try
      • K(D);P-FLIGHT
      • Threat
        • S(B)
      • Vars
        • R(b);OGATE,XS(B)::R(A),XR(b)
      • Refutation
        • P(d);
    • Try
      • K(D);S_FLIGHT
      • Threat
        • S(B)
      • Vars
        • R(b);OGATE,XS(B)::R(A),XR(b)
      • Refutation
        • P(d);
  • Actual
    • K(D);P_SPINS(B),S_FLIGHT
    • Threat
      • S(G)
    • Vars
      • R(b);CHECK,OGATE,XS(B)::R(A),XR(b)
      • R(b);N_PINS(B)::S(B)
      • P(d);N_GUARD::S(G),XB(c)
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Developed and maintained by Brian Stephenson.
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