MESON Chess Problem Database

Problem Display
PID: 83618 (3R2b1/8/1B2PK2/q2N3N/r3kP2/1p2p1R1/1p4r1/2bQ4 w - - 0 1)

Ellerman, Arnoldo

1st Prize, Del Vejle Socialdemocrat, 1932

3R2b1/8/1B2PK2/q2N3N/r3kP2/1p2p1R1/1p4r1/2bQ4

#2

9 + 9

6490 yacpdb 2009
56 The Problemist 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3+
      • 2.Sxc3#
    • 1...Qxb6
      • 2.Sc3#
    • 1...Qb5
      • 2.Sc3#
    • 1...Qxd5
      • 2.Qxd5#
    • 1...Qa6
      • 2.Sc3#
    • 1...Qa7
      • 2.Sc3#
    • 1...Qa8
      • 2.Sc3#
    • 1...Rd2
      • 2.Rxe3#
    • 1...Rxg3
      • 2.Sxg3#
    • 1...Ra1
      • 2.Qd4#
    • 1...Ra2
      • 2.Qd4#
    • 1...Ra3
      • 2.Qd4#
    • 1...Rb4
      • 2.Sc3#
    • 1...Rd4
      • 2.Qxd4#
    • 1...Bd2
      • 2.Qb1#
    • 1...e2
      • 2.Qd3#
  • Keys
    • 1.Kg5!
      • threat
        • 2.Sf6#
      • 1...Qxd5+
        • 2.Qxd5#
      • 1...Rxg3+
        • 2.Sxg3#
      • 1...Qd2
        • 2.Sdf6#
      • 1...Rd2
        • 2.Rxe3#
      • 1...Bd2
        • 2.Qb1#
      • 1...Qc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • Q(h);CHECK,N_GUARD::S(D),XQ(h)
    • Q(h);N_GUARD,P_PINP(G),XB(F)::S(D)
    • Q(h);N_GUARD::S(D)
    • Q(h);OGATE,XS(D)::QAB1(A),XQ(h)
    • R(c);S_CUTB(a)::R1(B),XP(e)
    • R(c);XR(B)::S(E),XR(c)
    • R(f);N_GUARD::QAR1(A)
    • R(f);S_CUTQ(h)::S(D)
    • R(f);N_GUARD::QAR1(A),XR(f)
    • B(a);OGATE::QAB(A)
    • P(e);::QAB1(A)
  • Actual
    • K(H);P_SPINR(B),P_SPINS(D),S_FLIGHT
    • Threat
      • S(E)
    • Vars
      • Q(h);CHECK,OGATE,XS(D)::QAB1(A),XQ(h)
      • R(c);CHECK,XR(B)::S(E),XR(c)
      • Q(h);N_PINS(D)::S(D)
      • R(c);N_PINR(B)::R1(B),XP(e)
      • B(a);OGATE::QAB(A)
      • Q(h);N_PINS(D)::S(D),XQ(h)
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