MESON Chess Problem Database

Problem Display
PID: 37064 (3K4/2R5/8/8/4P3/1B1Q1P2/1pPNpN1p/1bkqB1Rr w - - 0 1)

Winter, Rudolf

Recomm., BCF 010. Ty., 1932-1933

3K4/2R5/8/8/4P3/1B1Q1P2/1pPNpN1p/1bkqB1Rr

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.Bxd2#
      • 2.Qxd2#
  • Tries
    • 1.Ba2?
      • threat
        • 2.Sb3#
      • 1...Qxd2
        • 2.Bxd2#
        • 2.Qxd2#
      • 1...Bxa2!
    • 1.Qxe2?
      • threat
        • 2.Sd3#
        • 2.Qxd1#
      • 1...Qxd2+
        • 2.Bxd2#
        • 2.Qxd2#
      • 1...Qxc2
        • 2.Sd3#
        • 2.Qd1#
      • 1...Qxe1
        • 2.Sd3#
        • 2.Qxe1#
      • 1...Qxe2!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sd3#
      • 1...Qxd2+
        • 2.Bxd2#
        • 2.Qxd2#
      • 1...Qxc2
        • 2.Sf1#
      • 1...Qxe1
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);
      • Threat
        • S(D)
      • Refutation
        • B(a);XB(F)
    • Try
      • Q(G);P_SPINS(D),XP(f)
      • Threat
        • DUALS(2)
      • Refutation
        • Q(c);N_PINS(D),XQ(G)
  • Actual
    • Q(G);P_SPINS(D)
    • Threat
      • S(E)
    • Vars
      • Q(c);N_PINS(D),P_SPINQ(c),XP(C)::QAB(G)+S(D)
      • Q(c);N_PINS(D),P_SPINQ(c),XB(A)::QAB(G)+S(D)
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