MESON Chess Problem Database

Problem Display
PID: 48290 (8/b1p5/3pb3/1P1k2rR/1P6/K1PrpNp1/5NBB/3RQ3 w - - 0 1)

Karlsson, Borje

2nd Prize, Vart Hem, 1937/II

8/b1p5/3pb3/1P1k2rR/1P6/K1PrpNp1/5NBB/3RQ3

#2

11 + 9

4872 Themes-64 1957

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sd2#
      • 2.Sxe5#
    • 1...exf2
      • 2.Se5#
    • 1...gxf2
      • 2.Sd2#
  • Tries
    • 1.Rxd3+?
      • 1...Bd4
        • 2.Rxd4#
      • 1...Kc4!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qa2#
      • 1...Kc4
        • 2.Qxd3#
      • 1...exf2
        • 2.Se5#
      • 1...gxf2
        • 2.Sd2#
      • 1...Rd2
        • 2.c4#
      • 1...c5
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);XS(C)::B(D)+S(H)
    • P(c);XS(C)::B(D)+S(H)
  • Tries
    • Try
      • R(A);CHECK,N_SPINP(G),P_PINR(e),XR(a)
      • Vars
        • B(h);N_GUARD,P_SPINB(h)::R1(A),XB(h)
      • Refutation
        • K(d);N_SPINR(e),S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • K(d);S_FLIGHT::QAB1(B),XR(a)
      • P(b);XS(C)::B(D)+S(H)
      • P(c);XS(C)::B(D)+S(H)
      • R(a);N_PINP(G)::P(G)
      • P(i);S_CUTB(h)::QAR2(B),XR(a)
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