MESON Chess Problem Database

Problem Display
PID: 237786 (1B3K2/4P3/rp3R2/2Pk1p1B/4Rr2/qn3Q1b/2Pn4/2b2N2 w - - 0 1)

Goldschmeding, Cornelis

Arbejder-Skak, 1954

1B3K2/4P3/rp3R2/2Pk1p1B/4Rr2/qn3Q1b/2Pn4/2b2N2

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc5
      • 2.Bf7#
    • 1...Rg4
      • 2.Qxf5#
    • 1...Sxc5
      • 2.Rd6#
    • 1...bxc5
      • 2.Se3#
  • Tries
    • 1.Rc4+?
      • 1...Rxf3
        • 2.Bf7#
      • 1...Re4
        • 2.Se3#
        • 2.Bf7#
      • 1...Sxf3
        • 2.Bf7#
      • 1...Se4
        • 2.Bf7#
      • 1...Kxc4!
    • 1.Rd4+?
      • 1...Kxc5
        • 2.Qd5#
      • 1...Kxd4!
    • 1.Re5+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc4!
    • 1.Qd3+?
      • 1...Sd4
        • 2.Re5#
        • 2.Qxd4#
      • 1...Kxc5!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Re5#
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qe5#
        • 2.Qd3#
      • 1...Rxe4
        • 2.Rd6#
      • 1...Sxe4
        • 2.Bf7#
      • 1...fxe4
        • 2.Se3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Qb2
        • 2.Re5#
      • 1...Qa1
        • 2.Re5#
      • 1...Bb2
        • 2.Re5#
      • 1...Sf3
        • 2.Qc4#
      • 1...Sd4
        • 2.Re5#
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • Q(c);P_PINP(H),SBLOCK,XP(E)::B(F)
    • R(f);OGATE::QAR2(C),XP(h)
    • S(d);SBLOCK,XP(E)::R1(G)
    • P(j);SBLOCK,XP(E)::S(A)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • R(f);XQ(C)::B(F)
        • S(b);XQ(C)::B(F)
        • S(b);P_SPINS(b)::B(F)
      • Refutation
        • K(g);S_FLIGHT,XR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(g);P-FLIGHT,XP(E)::QAR1(C)
      • Refutation
        • K(g);P-FLIGHT,XR(D)
    • Try
      • R(D);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(C)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(g);P-FLIGHT,XP(E)
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);SBLOCK,XR(D)::R1(G)
      • S(b);SBLOCK,XR(D)::B(F)
      • P(h);P_PINR(G),SBLOCK,XR(D)::S(A)
      • S(b);N_GUARD::QAB1(C),XS(b)
      • Q(c);::R1(D)
      • B(a);::R1(D)
      • S(b);N_GUARD::QAB1(C)
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