MESON Chess Problem Database

Problem Display
PID: 227594 (1b2N3/8/2n5/1R1Bk1p1/1p4P1/q1pR2K1/5P2/Q1N3B1 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1926

1b2N3/8/2n5/1R1Bk1p1/1p4P1/q1pR2K1/5P2/Q1N3B1

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Re3#
  • Tries
    • 1.Kf3?
      • threat
        • 2.Bh2#
        • 2.Ba2#
        • 2.Bb3#
        • 2.Bc4#
        • 2.Bf7#
        • 2.Bg8#
      • 1...Qxc1
        • 2.Ba2#
        • 2.Bb3#
        • 2.Bc4#
        • 2.Bf7#
        • 2.Bg8#
      • 1...Qa2
        • 2.Bh2#
        • 2.Bxa2#
        • 2.Bb3#
        • 2.Bc4#
      • 1...Qb3
        • 2.Bh2#
        • 2.Bxb3#
        • 2.Bc4#
      • 1...Qa4
        • 2.Bh2#
      • 1...Qa5
        • 2.Bh2#
      • 1...Qa6
        • 2.Bh2#
      • 1...Qa7
        • 2.Bh2#
      • 1...Bd6
        • 2.Bh2#
      • 1...Ba7
        • 2.Bh2#
      • 1...Sa7
        • 2.Bh2#
      • 1...Se7
        • 2.Bh2#
      • 1...b3
        • 2.Bh2#
      • 1...Sd4+!
    • 1.Kh3?
      • threat
        • 2.Bh2#
      • 1...Kf4
        • 2.Bh2#
      • 1...Qxc1!
    • 1.Bh2?
      • threat
        • 2.Kg2#
        • 2.Kf3#
        • 2.Kh3#
      • 1...Sd4
        • 2.Kg2#
        • 2.Kh3#
        • 2.Re3#
      • 1...Qxc1!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Re4#
      • 1...Kxd4+
        • 2.f4#
      • 1...c2+
        • 2.Bb3#
      • 1...Sxd4
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_SPINP(b),SBLOCK::R(E)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • DUALS(6)
      • Vars
        • Q(a);::B(C)
        • B(g);::B(C)
        • S(f);::B(C)
        • P(c);::B(C)
      • Refutation
        • S(f);CHECK,N_SPINP(b)
    • Try
      • K(F);P-FLIGHT
      • Threat
        • B(C)
      • Vars
        • K(d);N_SPINP(b),S_FLIGHT::B(C)
      • Refutation
        • Q(a);XS(B)
    • Try
      • B(C);
      • Threat
        • DUALS(3)
      • Refutation
        • Q(a);XS(B)
  • Actual
    • R(E);N_PINP(b)
    • Threat
      • R1(E)
    • Vars
      • K(d);CHECK,P_SPINP(b),S_FLIGHT,XR(E)::B(C)+P(D)
      • P(b);CHECK::R(H)+B(I)
      • S(f);SBLOCK,XR(E)::S(B)
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