MESON Chess Problem Database

Problem Display
PID: 99154 (8/4K3/4p3/3P1P2/1p2k3/1PpR1R1p/2P1NP1B/4b1n1 w - - 0 1)

Groeneveld, Cornelis

Magyar Sakkelet, 1985

8/4K3/4p3/3P1P2/1p2k3/1PpR1R1p/2P1NP1B/4b1n1

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...exd5
      • 2.Rde3#
    • 1...exf5
      • 2.Rfe3#
    • 1...e5
      • 2.Sg3#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Sg3#
        • 2.Rfe3#
        • 2.Rf4#
      • 1...Bxf2
        • 2.Rf4#
      • 1...Sxe2
        • 2.Rfe3#
      • 1...Bd2
        • 2.Sg3#
      • 1...e5
        • 2.Sg3#
        • 2.Rfe3#
      • 1...Sxf3!
    • 1.Bd6?
      • threat
        • 2.Sg3#
        • 2.Rf4#
      • 1...Bxf2
        • 2.Rf4#
      • 1...Sxf3
        • 2.Sg3#
      • 1...Bd2
        • 2.Sg3#
      • 1...e5
        • 2.Sg3#
      • 1...Sxe2!
    • 1.Bc7?
      • threat
        • 2.Sg3#
        • 2.Rf4#
      • 1...Bxf2
        • 2.Rf4#
      • 1...Sxf3
        • 2.Sg3#
      • 1...Bd2
        • 2.Sg3#
      • 1...e5
        • 2.Sg3#
      • 1...Sxe2!
    • 1.Bb8?
      • threat
        • 2.Sg3#
        • 2.Rf4#
      • 1...Bxf2
        • 2.Rf4#
      • 1...Sxf3
        • 2.Sg3#
      • 1...Bd2
        • 2.Sg3#
      • 1...e5
        • 2.Sg3#
      • 1...Sxe2!
  • Keys
    • 1.Kxe6!
      • threat
        • 2.Sg3#
        • 2.Rde3#
        • 2.Rfe3#
        • 2.Rf4#
      • 1...Bxf2
        • 2.Rf4#
      • 1...Sxe2
        • 2.Rfe3#
      • 1...Sxf3
        • 2.Re3#
      • 1...Bd2
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • P(g);SBLOCK,XP(H)::R1(F)
    • P(g);SBLOCK,XP(I)::R1(G)
    • P(g);SBLOCK::S(B)
  • Tries
    • Try
      • K(J);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • B(a);XP(C)::R1(G)
        • S(b);XS(B)::R1(G)
        • B(a);::S(B)
      • Refutation
        • S(b);XR(G)
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XP(C)::R1(G)
        • S(b);XR(G)::S(B)
        • B(a);::S(B)
        • P(g);::S(B)
      • Refutation
        • S(b);XS(B)
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XP(C)::R1(G)
        • S(b);XR(G)::S(B)
        • B(a);::S(B)
        • P(g);::S(B)
      • Refutation
        • S(b);XS(B)
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XP(C)::R1(G)
        • S(b);XR(G)::S(B)
        • B(a);::S(B)
        • P(g);::S(B)
      • Refutation
        • S(b);XS(B)
  • Actual
    • K(J);P-FLIGHT,XP(g)
    • Threat
      • DUALS(4)
    • Vars
      • B(a);XP(C)::R1(G)
      • S(b);XS(B)::R1(G)
      • S(b);XR(G)::R1(F)
      • B(a);::S(B)
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