MESON Chess Problem Database

Problem Display
PID: 232440 (8/1b2Q1n1/2PpqB1K/1B3P2/3R3N/4kp1p/R6P/8 w - - 0 1)

Dietrich, Albert

Freie Presse, 1975

8/1b2Q1n1/2PpqB1K/1B3P2/3R3N/4kp1p/R6P/8

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Rxe4#
      • 2.Qxe4#
    • 1...Sxf5+
      • 2.Sxf5#
    • 1...Sh5
      • 2.Qxe6#
    • 1...Se8
      • 2.Qxe6#
    • 1...f2
      • 2.Re2#
      • 2.Ra3#
    • 1...d5
      • 2.Qa3#
  • Tries
    • 1.Rd3+?
      • 1...Ke4
        • 2.Ra4#
      • 1...Kf4!
    • 1.Rda4?
      • 1...Sxf5+
        • 2.Sxf5#
      • 1...Bxc6
        • 2.Qa7#
      • 1...Qe4
        • 2.Bg5#
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Qe5
        • 2.Bg5#
      • 1...Ba6
        • 2.Qa7#
      • 1...Ba8
        • 2.Qa7#
      • 1...Bc8
        • 2.Qa7#
      • 1...Sh5
        • 2.Qxe6#
      • 1...Se8
        • 2.Qxe6#
      • 1...f2
        • 2.Re2#
      • 1...d5
        • 2.Qa3#
      • 1...Qxe7!
  • Keys
    • 1.Rg4!
      • 1...Sxf5+
        • 2.Sxf5#
      • 1...Qxe7
        • 2.Bd4#
      • 1...Bxc6
        • 2.Qa7#
      • 1...Qe4
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Qe5
        • 2.Bg5#
      • 1...Ba6
        • 2.Qa7#
      • 1...Ba8
        • 2.Qa7#
      • 1...Bc8
        • 2.Qa7#
      • 1...Sh5
        • 2.Qxe6#
      • 1...Se8
        • 2.Qxe6#
      • 1...f2
        • 2.Re2#
      • 1...d5
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(g);CHECK,XP(F)::S(D),XS(g)
    • S(g);N_GUARD::QAR(J),XQ(e)
    • P(d);OGATE::QAR(J)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);N_SPINQ(e),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • S(g);CHECK,XP(F)::S(D),XS(g)
        • B(f);OGATE,XP(G)::QAB(J)
        • Q(e);N_PINB(H)::B(H)
        • B(f);OGATE::QAB(J)
        • S(g);N_GUARD::QAR(J),XQ(e)
        • P(b);N_GUARD::R1(A)
        • P(d);OGATE::QAR(J)
      • Refutation
        • Q(e);N_PINB(H),N_SPINQ(e),XQ(J)
  • Actual
    • R(C);
    • Vars
      • S(g);CHECK,XP(F)::S(D),XS(g)
      • Q(e);N_PINB(H),N_SPINQ(e),XQ(J)::B(H)
      • B(f);OGATE,XP(G)::QAB(J)
      • Q(e);N_PINB(H)::B(H)
      • B(f);OGATE::QAB(J)
      • S(g);N_GUARD::QAR(J),XQ(e)
      • P(b);N_GUARD::R1(A)
      • P(d);OGATE::QAR(J)
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