MESON Chess Problem Database

Problem Display
PID: 237775 (8/b3BK1p/2pr1np1/R1n1k3/5N1N/1pP2P2/7P/1b4Q1 w - - 0 1)

Goldschmeding, Cornelis

Arbejder-Skak, 1947

8/b3BK1p/2pr1np1/R1n1k3/5N1N/1pP2P2/7P/1b4Q1

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Bxd6#
    • 1...Rd3
      • 2.Qg5#
    • 1...Rd4
      • 2.Qxd4#
    • 1...Re6
      • 2.Qd4#
    • 1...Ba2
      • 2.Qg5#
    • 1...Sd5
      • 2.Qd4#
  • Tries
    • 1.Sd3+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Rxd3
        • 2.Qg5#
      • 1...Bxd3!
    • 1.Bxf6+?
      • 1...Kxf4
        • 2.Qg5#
      • 1...Rxf6+!
    • 1.Rxc5+?
      • 1...Kxf4
        • 2.Bxd6#
        • 2.Qg5#
      • 1...Rd5
        • 2.Qd4#
      • 1...Sd5
        • 2.Qd4#
      • 1...Bxc5!
    • 1.Qxc5+?
      • 1...Kxf4
        • 2.Bxd6#
        • 2.Qe5#
        • 2.Qg5#
      • 1...Rd5
        • 2.Bd6#
        • 2.Qd6#
      • 1...Sd5
        • 2.Bxd6#
        • 2.Qxd6#
      • 1...Bxc5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qd4#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Rxd5
        • 2.Qg3#
      • 1...Sd3
        • 2.Qg5#
      • 1...Sa4
        • 2.Qg3#
      • 1...Sce4
        • 2.f4#
      • 1...Sa6
        • 2.Qg3#
      • 1...Se6
        • 2.Bxf6#
      • 1...Sb7
        • 2.Qg3#
      • 1...Scd7
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 6
  • Sets
    • K(d);N_SPINS(c),S_FLIGHT,XS(E)::B(H),XR(f)
    • R(f);S_CUTB(a)::QAR2(A)
    • R(f);N_GUARD::QAB1(A),XR(f)
    • R(f);N_GUARD::QAB1(A)
    • B(a);N_GUARD::QAR2(A)
    • S(g);N_SPINS(c),S_CUTR(f)::QAB1(A)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
        • R(f);XS(E)::QAR2(A)
      • Refutation
        • B(a);XS(E)
    • Try
      • B(H);CHECK,XS(g)
      • Vars
        • K(d);N_SPINS(c),S_FLIGHT,XS(E)::QAB1(A)
      • Refutation
        • R(f);CHECK,XB(H)
    • Try
      • R(G);CHECK,XS(c)
      • Vars
        • R(f);P_SPINR(f)::QAB1(A)
        • S(g);P_SPINS(g)::QAB1(A)
      • Refutation
        • B(i);XR(G)
    • Try
      • Q(A);CHECK,XS(c)
      • Refutation
        • B(i);P_SPINB(i),XQ(A)
  • Actual
    • S(E);N_PINS(c)
    • Threat
      • QAB1(A)
    • Vars
      • K(d);P-FLIGHT,P_SPINS(c),XS(E)::QAR1(A)
      • R(f);SBLOCK,XS(E)::QAB(A)
      • S(c);S_CUTB(a)::QAR2(A)
      • S(c);::QAB(A)
      • S(c);SBLOCK::P(D)
      • S(c);S_CUTR(f)::B(H),XS(g)
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