MESON Chess Problem Database

Problem Display
PID: 93303 (8/8/8/5p2/5P2/NpN2Qp1/1P1kp1Kp/R1n1b2R w - - 0 1)

Groeneveld, Cornelis

Skakbladet, 1954

8/8/8/5p2/5P2/NpN2Qp1/1P1kp1Kp/R1n1b2R

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Scb1#
    • 1...Sa2
      • 2.Qxe2#
    • 1...Sd3
      • 2.Qxe2#
  • Tries
    • 1.Kh3?
      • 1...Bf2
        • 2.Scb1#
      • 1...Sa2
        • 2.Qxe2#
      • 1...Sd3
        • 2.Qxe2#
      • 1...g2!
    • 1.Se4+?
      • 1...Kd1
        • 2.Qxb3#
        • 2.Qd3#
      • 1...fxe4!
    • 1.Rb1?
      • 1...Sa2
        • 2.Qxe2#
      • 1...Sd3
        • 2.Qxe2#
      • 1...Bf2!
    • 1.Rxc1?
      • 1...Bf2
        • 2.Sab1#
        • 2.Sc4#
        • 2.Scb1#
        • 2.Qxe2#
      • 1...Kxc1!
    • 1.Qe4?
      • threat
        • 2.Sab1#
        • 2.Sc4#
      • 1...Sa2
        • 2.Sc4#
        • 2.Qxe2#
        • 2.Qd4#
      • 1...Sd3
        • 2.Qxe2#
      • 1...fxe4!
  • Keys
    • 1.Sd5!
      • 1...Kd1
        • 2.Qd3#
      • 1...Bf2
        • 2.Qc3#
      • 1...Sa2
        • 2.Qe3#
      • 1...Sd3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);::S(F)
    • S(a);N_GUARD::QAR1(G),XP(d)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • B(b);::S(F)
        • S(a);N_GUARD::QAR1(G),XP(d)
      • Refutation
        • P(g);
    • Try
      • S(F);CHECK
      • Refutation
        • P(h);XS(F)
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD::QAR1(G),XP(d)
      • Refutation
        • B(b);
    • Try
      • R(A);XS(a)
      • Refutation
        • K(c);P_SPINB(b),S_FLIGHT,XR(A)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::QAR1(G),XP(d)
      • Refutation
        • P(h);XQ(G)
  • Actual
    • S(F);
    • Vars
      • K(c);P-FLIGHT,P_SPINB(b),P_SPINP(d),P_SPINS(a)::QAR2(G)
      • B(b);::QAB1(G)
      • S(a);::QAB1(G)
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