MESON Chess Problem Database

Problem Display
PID: 203370 (2R3b1/Nk2p3/p2p4/P4n2/1Np5/5r2/P1P2B2/3RQ1KB w - - 0 1)

Hartong, Jan

ten Cate, Pieter

Svenska Dagbladet, 1924

2R3b1/Nk2p3/p2p4/P4n2/1Np5/5r2/P1P2B2/3RQ1KB

#2

11 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sg3
      • 2.Qxe7#
    • 1...Sd4
      • 2.Qxe7#
    • 1...Sh4
      • 2.Qxe7#
    • 1...Sh6
      • 2.Qxe7#
    • 1...Sg7
      • 2.Qxe7#
  • Tries
    • 1.Sbc6?
      • threat
        • 2.Sd8#
        • 2.Qb4#
      • 1...Rxf2
        • 2.Rb1#
        • 2.Qb4#
      • 1...Rb3
        • 2.Sd8#
      • 1...Rc3
        • 2.Sd8#
      • 1...Re3
        • 2.Qb4#
      • 1...Se3
        • 2.Rb1#
        • 2.Qb4#
      • 1...Sd4
        • 2.Qxe7#
      • 1...c3
        • 2.Sd8#
      • 1...Rg3+!
    • 1.Bxf3+?
      • 1...Bd5
        • 2.Bxd5#
      • 1...d5!
    • 1.Qe3?
      • threat
        • 2.Qb6#
      • 1...Sd4
        • 2.Qxe7#
      • 1...Sxe3!
    • 1.Qe4+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5!
  • Keys
    • 1.Rb1!
      • threat
        • 2.Sd3#
      • 1...Se3
        • 2.Sbc6#
      • 1...Sd4
        • 2.Qxe7#
      • 1...c3
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(c);N_GUARD::QAR(B),XP(g)
  • Tries
    • Try
      • S(H);N_PINR(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::B(D)+S(H),DCHECK
        • R(a);::QAR(B)
        • S(c);N_GUARD::QAR(B),XP(g)
        • P(b);::S(H)
      • Refutation
        • R(a);CHECK
    • Try
      • B(D);CHECK,XR(a)
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::B(D),XB(h)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(c);N_GUARD::QAR(B),XP(g)
      • Refutation
        • S(c);XQ(B)
    • Try
      • Q(B);CHECK,N_PINR(a)
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::QAB(B),XB(h)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • R(A);
    • Threat
      • R(A)+S(H)
    • Vars
      • S(c);::R(A)+S(H)
      • S(c);N_GUARD::QAR(B),XP(g)
      • P(b);::R(A)+S(H)
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Developed and maintained by Brian Stephenson.
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