MESON Chess Problem Database

Problem Display
PID: 78690 (bb6/8/1pnQB3/RN5r/4k2p/2PnB2R/7K/8 w - - 0 1)

Gevers, Raymond

van der Wal, H

Source?, 1944

bb6/8/1pnQB3/RN5r/4k2p/2PnB2R/7K/8

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd6+
      • 2.Sxd6#
    • 1...Sde5
      • 2.Qd5#
    • 1...Sce5
      • 2.Qd4#
  • Tries
    • 1.Bc1?
      • threat
        • 2.Re3#
      • 1...Bxd6+
        • 2.Sxd6#
      • 1...Re5
        • 2.Qxd3#
      • 1...Sde5
        • 2.Qd5#
      • 1...Sce5
        • 2.Qd4#
      • 1...Sxc1!
    • 1.c4?
      • threat
        • 2.Sc3#
      • 1...Bxd6+
        • 2.Sxd6#
      • 1...Rxb5!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Re3#
      • 1...Bxd6+
        • 2.Sxd6#
      • 1...Re5
        • 2.Qxd3#
      • 1...Sde5
        • 2.Qd5#
      • 1...Sce5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(h);CHECK,XQ(G)::S(F),XB(h)
    • S(a);N_PINQ(G)::QAB1(G)
    • S(f);N_PINQ(G)::QAR1(G)
  • Tries
    • Try
      • B(C);
      • Threat
        • R1(D)
      • Vars
        • B(h);CHECK,XQ(G)::S(F),XB(h)
        • R(d);N_PINQ(G),SBLOCK::QAB1(G),XS(a)
        • S(a);N_PINQ(G)::QAB1(G)
        • S(f);N_PINQ(G)::QAR1(G)
      • Refutation
        • S(a);XB(C)
    • Try
      • P(B);
      • Threat
        • S(F)
      • Vars
        • B(h);CHECK,XQ(G)::S(F),XB(h)
      • Refutation
        • R(d);XS(F)
  • Actual
    • B(C);
    • Threat
      • R1(D)
    • Vars
      • B(h);CHECK,XQ(G)::S(F),XB(h)
      • R(d);N_PINQ(G),SBLOCK::QAB1(G),XS(a)
      • S(a);N_PINQ(G)::QAB1(G)
      • S(f);N_PINQ(G)::QAR1(G)
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