MESON Chess Problem Database

Problem Display
PID: 216170 (6Q1/2BK4/1p6/1P1RNP2/3bk1P1/7N/1prP1pn1/1B1b4 w - - 0 1)

Heidrich, Gerhard

Deutsche Schachzeitung, 1929

6Q1/2BK4/1p6/1P1RNP2/3bk1P1/7N/1prP1pn1/1B1b4

#2

11 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Bxc2#
    • 1...Bxg4
      • 2.Bxc2#
    • 1...Be3
      • 2.d3#
    • 1...Se3
      • 2.d3#
    • 1...Sf4
      • 2.Sg5#
  • Tries
    • 1.Rc5?
      • threat
        • 2.Qd5#
        • 2.Qa8#
      • 1...Bxg4
        • 2.Bxc2#
      • 1...Bxe5
        • 2.Qd5#
      • 1...bxc5
        • 2.Qa8#
      • 1...Bc3
        • 2.Qd5#
      • 1...Be3
        • 2.Qd5#
      • 1...Se3
        • 2.d3#
      • 1...Sf4
        • 2.Sg5#
      • 1...Bxc5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Rc5#
      • 1...Bxg4
        • 2.Bxc2#
      • 1...Bxe5
        • 2.Rd6#
      • 1...Bc3
        • 2.Rd3#
      • 1...Be3
        • 2.d3#
      • 1...Bc5
        • 2.Rd3#
      • 1...Se3
        • 2.d3#
      • 1...Sf4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::B(A),XR(c)
    • B(a);N_GUARD,P_PINP(H),XP(D)::B(A),XR(c)
    • B(f);SBLOCK::P(B)
    • S(e);SBLOCK::P(B)
    • S(e);SBLOCK::S(C)
  • Tries
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD,P_PINP(H),XP(D)::B(A),XR(c)
        • B(f);XS(G)::QAB1(K)
        • P(h);XR(F)::QAB(K)
        • B(f);::QAB1(K)
        • S(e);SBLOCK::P(B)
        • S(e);SBLOCK::S(C)
      • Refutation
        • B(f);XR(F)
  • Actual
    • Q(K);
    • Threat
      • QAB(K)+R(F)
    • Vars
      • B(a);N_GUARD,P_PINP(H),XP(D)::B(A),XR(c)
      • B(f);SBLOCK,XS(G)::QAB(K)+R(F)
      • B(f);OGATE::QAB(K)+R(F)
      • B(f);SBLOCK::P(B)
      • S(e);SBLOCK::P(B)
      • S(e);SBLOCK::S(C)
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